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SHORT ACTION CUSTOMS
MODULAR HEADSPACE COMPARATOR INSERTS

100050145
Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum.  They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more.  Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.  
35.9 49.9 44 GBP
Product no.: 100050145
SHORT ACTION CUSTOMS 7MM X 40° X 125° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-740125HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
Notify on availability
Not available.
Specs: Cartridge: 7 mm

Top takeaways

  1. The Modular Headspace Comparator Insert requires a separately purchased Modular Headspace Comparator Body to function.
  2. Designed for precision, the insert is compatible with cartridges up to 338 Lapua Magnum and is made from 17-4 Stainless Steel for durability and corrosion resistance.
  3. This new Modular Design offers the most accurate cartridge headspace and bullet measurements currently available.

Attributes

Cartridge: 7 mm Delivery weight: 0.032kg Shipping height: 25mm Shipping width: 89mm Shipping length: 102mm

Item details

Made in USA



Product no.: 100050130
SHORT ACTION CUSTOMS 22 CALIBER X 30° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-2230HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 1 £43.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 22 Caliber (.223-.224)
Product no.: 100050171
SHORT ACTION CUSTOMS 22 CALIBER X 35° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-2235HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
38.9 GBP 2 £38.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 22 Caliber (.223-.224)
Product no.: 100050133
SHORT ACTION CUSTOMS 25 CALIBER X 30° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-2530HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 2 £43.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 25 Caliber (.251)
Product no.: 100050157
SHORT ACTION CUSTOMS 30 CALIBER X 20° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-3020HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
49.9 GBP 4 £49.90 *
Delivery time approx. 7-14 days.
4 pcs. in the USA warehouse
Specs: Cartridge: 30 Caliber (.308)
Product no.: 100050161
SHORT ACTION CUSTOMS 338 CALIBER X 20° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-33820HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
35.9 GBP 1 £35.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 338 Caliber
Product no.: 100050166
SHORT ACTION CUSTOMS 338 CALIBER X 35° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-33835HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
38.9 GBP 3 £38.90 *
Delivery time approx. 7-14 days.
3 pcs. in the USA warehouse
Specs: Cartridge: 338 Caliber
Product no.: 100050173
SHORT ACTION CUSTOMS 338 CALIBER X 30° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-33830HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
35.9 GBP 2 £35.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 338 Caliber
Product no.: 100050132
SHORT ACTION CUSTOMS 204 RUGER MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-204HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 1 £43.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 204 Ruger
Product no.: 100050163
SHORT ACTION CUSTOMS 30-06 SPRINGFIELD MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-3006HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 2 £43.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 30-06 Springfield
Product no.: 100050159
SHORT ACTION CUSTOMS 300 BLACKOUT MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-300BOHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
49.9 GBP 2 £49.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 300 AAC Blackout
Product no.: 100050158
SHORT ACTION CUSTOMS 300 NORMA MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-300NMHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
35.9 GBP 1 £35.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 300 Norma
Product no.: 100050162
SHORT ACTION CUSTOMS 300 WINCHESTER MAGNUM MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-300WMHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 2 £43.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 300 Winchester Magnum
Product no.: 100050168
SHORT ACTION CUSTOMS 33 XC MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-33XCHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
35.9 GBP 1 £35.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 33 XC
Product no.: 100050169
SHORT ACTION CUSTOMS 338 NORMA MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-338NMHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
35.9 GBP 2 £35.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 338 Norma Mag
Product no.: 100050170
SHORT ACTION CUSTOMS 375 CHEYTAC MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-375CTHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 2 £43.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 375 Cheytac
Product no.: 100050143
SHORT ACTION CUSTOMS 6.5MM X 20° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-6520HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 1 £43.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 264/6.5 mm (.264)
Product no.: 100050142
SHORT ACTION CUSTOMS 6.5MM X 30° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC6530HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
49.9 GBP 2 £49.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 264/6.5 mm (.264)
Product no.: 100050148
SHORT ACTION CUSTOMS 6.5MM X 40° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-6540HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
35.9 GBP 6 £35.90 *
Delivery time approx. 7-14 days.
6 pcs. in the USA warehouse
Specs: Cartridge: 264/6.5 mm (.264)
Product no.: 100050147
SHORT ACTION CUSTOMS 6.5X55 SWED MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-6555SHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 1 £43.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 6.5 x 55 mm Swedish Mauser
Product no.: 100050137
SHORT ACTION CUSTOMS 6MM X 20° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-620HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 2 £43.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 243/6 mm (.243)
Product no.: 100050136
SHORT ACTION CUSTOMS 6MM X 30° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-630HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
49.9 GBP 2 £49.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 243/6 mm (.243)
Product no.: 100050138
SHORT ACTION CUSTOMS 6MM X 40° W/.275" NECK MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-64075HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
35.9 GBP 2 £35.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 243/6 mm (.243)
Product no.: 100050152
SHORT ACTION CUSTOMS 7 STW MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-7STWHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
35.9 GBP 1 £35.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 7 mm STW
Product no.: 100050151
SHORT ACTION CUSTOMS 7MM REMINGTON MAGNUM MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-7RMHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 1 £43.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 7 mm Remington Magnum
Product no.: 100050153
SHORT ACTION CUSTOMS 7MM X 40° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-740HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 1 £43.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 7 mm
Product no.: 100050131
SHORT ACTION CUSTOMS 22 CALIBER X 28° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-2228HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 0 £43.90 *
Backordered, delivery time approx. 4-12 weeks from the USA warehouse.
Specs: Cartridge: 22 Caliber (.223-.224)
Product no.: 100050155
SHORT ACTION CUSTOMS 30 CALIBER X 35° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-3035HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
43.9 GBP 0 £43.90 *
Backordered, delivery time approx. 4-12 weeks from the USA warehouse.
Specs: Cartridge: 30 Caliber (.308)
Product no.: 100050144
SHORT ACTION CUSTOMS 6 DASHER ALPHA MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC6DAHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
39.9 GBP 0 £39.90 *
Notify on availability
Out of stock. No ETA.
Specs: Cartridge: 6 mm Dasher
Product no.: 100050135
SHORT ACTION CUSTOMS 22 CALIBER X 40° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-2240HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
Notify on availability
Not available.
Specs: Cartridge: 22 Caliber (.223-.224)
Product no.: 100050134
SHORT ACTION CUSTOMS 223 REMINGTON MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-223HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 223 Remington
Product no.: 100050146
SHORT ACTION CUSTOMS 270 WINCHESTER MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-270HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 270 Winchester
Product no.: 100050156
SHORT ACTION CUSTOMS 30 CALIBER X 30° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-3030HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 30 Caliber (.308)
Product no.: 100050160
SHORT ACTION CUSTOMS 30 CALIBER X 40° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-3040HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 30 Caliber (.308)
Product no.: 100050165
SHORT ACTION CUSTOMS 338 CALIBER X 40° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-33840HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 338 Caliber
Product no.: 100050172
SHORT ACTION CUSTOMS 416 BARRETT MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-416BHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 416 Barrett
Product no.: 100050164
SHORT ACTION CUSTOMS 338 LAPUA MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-338LHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 338 Lapua
Product no.: 100050167
SHORT ACTION CUSTOMS 37 XC MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-37XCHSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 37 XC
Product no.: 100050141
SHORT ACTION CUSTOMS 6.5MM X 35° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-6535HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 264/6.5 mm (.264)
Product no.: 100050140
SHORT ACTION CUSTOMS 6MMX35° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-635HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 243/6 mm (.243)
Product no.: 100050139
SHORT ACTION CUSTOMS 6MM X 40° W/.273" NECK MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-64073HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 243/6 mm (.243)
Product no.: 100050150
SHORT ACTION CUSTOMS 7MM X 20° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-720HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 7 mm
Product no.: 100050149
SHORT ACTION CUSTOMS 7MM X 30° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC730HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 7 mm
Product no.: 100050154
SHORT ACTION CUSTOMS 7MM X 35 ° MODULAR HEADSPACE COMPARATOR INSERT
Mfr Part: SAC-735HSC Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
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Specs: Cartridge: 7 mm

Discover the precision of our Modular Headspace Comparator Inserts! 🌟 Designed for accuracy with 7mm cartridges, elevate your measuring game!

Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum.  They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more.  Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.  
0
In stock
£49.90
4.5
In stock
£84.90
4
In stock
£124.90
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In stock
£24.90 £23.90 - £24.90
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