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MANSON PRECISION
RIMMED/RIMLESS PISTOL/RIMMED RIFLE CARTRIDGE HEADSPACE GAUGES

513100451
Determine Correct Headspace
Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.

SPECS: M7 high speed steel, in-the-white, hardened.

84.9 89.9 8 GBP
Product no.: 513100451
MANSON PRECISION NO GO GAUGE, FITS .45 ACP
Mfr Part: NG45AUTO Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.
84.9 GBP 5 £84.90 *
Delivery time approx. 7-14 days.
5 pcs. in the USA warehouse
Specs: Cartridge: 45 Auto (ACP) Style: No Go Gauge

Top takeaways

  1. The NO GO Gauge by MANSON PRECISION is designed to check the maximum chamber depth for safety in .45 ACP firearms, providing a small safety margin below the SAAMI-recommended size.
  2. It is important to use the same brand of headspace gauges for a particular caliber to avoid tolerance stacking and ensure accurate measurements.
  3. The gauge is made from M7 high-speed steel, is in-the-white, and hardened for durability and a long service life.

Attributes

Cartridge: 45 Auto (ACP) Style: No Go Gauge Delivery weight: 0.018kg Shipping width: 57mm Shipping length: 89mm

Item details

Made in USA



Product no.: 513100340
MANSON PRECISION GO GAUGE, FITS 9MM LUGER
Mfr Part: G09MM Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.
84.9 GBP 2 £84.90 *
Delivery time approx. 7-14 days.
2 pcs. in the USA warehouse
Specs: Cartridge: 9 mm Luger Style: Go Gauge
Product no.: 513100400
MANSON PRECISION GO GAUGE, FITS .40 SMITH & WESSON
Mfr Part: G040SW Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.
84.9 GBP 1 £84.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 40 S&W Style: Go Gauge
Product no.: 513100401
MANSON PRECISION NO GO GAUGE, FITS .40 SMITH & WESSON
Mfr Part: NG40SW Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.
84.9 GBP 1 £84.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 40 S&W Style: No Go Gauge
Product no.: 513100450
MANSON PRECISION GO GAUGE, FITS .45 ACP
Mfr Part: G045ACP Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.
84.9 GBP 4 £84.90 *
Delivery time approx. 7-14 days.
4 pcs. in the USA warehouse
Specs: Cartridge: 45 Auto (ACP) Style: Go Gauge
Product no.: 513100500
MANSON PRECISION GO GAUGE, FITS 7.62 X 54R RUSSIAN
Mfr Part: G07.62X54R Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.
89.9 GBP 1 £89.90 *
Delivery time approx. 7-14 days.
1 pcs. in the USA warehouse
Specs: Cartridge: 7.62 x 54 mm Russian Style: Go Gauge
Product no.: 513100341
MANSON PRECISION NO GO GAUGE, FITS 9MM LUGER
Mfr Part: NG9MMLUG Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.
84.9 GBP 0 £84.90 *
Backordered, delivery time approx. 4-12 weeks from the USA warehouse.
Specs: Cartridge: 9 mm Luger Style: No Go Gauge
Product no.: 513100501
MANSON PRECISION NO GO GAUGE, FITS 7.62 X 54R RUSSIAN
Mfr Part: NG76254R Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.
Notify on availability
Not available.
Specs: Cartridge: 7.62 x 54 mm Russian Style: No Go Gauge

Ensure your firearm's safety with the Manson Precision No Go Gauge for .45 ACP. 🔍 Precision-engineered for reliable headspace measurements.

Determine Correct Headspace
Gives the proper chamber headspace dimensions so you know a firearm is safe to fire. GO gauge gives the SAMMI-recommended, minimum chamber depth. NO/GO is slightly shorter than the SAMMI-recommended to give a small safety margin maximum chamber depth. Precision-ground and hardened to provide long service life. MIXING AND MATCHING BRANDS OF HEADSPACE GAUGES - Don't do it!! That's the short answer, here's why. It boils down to tolerance stacking. Each Headspace Gauge manufacturer works within a range specified by SAAMI. Manufacturer "A" may work at the high end of the range while Manufacturer "B's" gauges are in the middle of the tolerance range. Mixing the two could give an inaccurate reading. By sticking with one brand within a particular caliber, you will eliminate a variable. If you have a Forster, .308 GO gauge, get a Forster, .308 NO GO. Use Clymer with Clymer and Manson Precision with Manson Precision, etc. You can use any brand of headspace gauge with any other brand of chambering reamer. e.g. Forster Headspace Gauges with Clymer Reamers, Manson Precision Gauges with JGS Reamers, etc.

SPECS: M7 high speed steel, in-the-white, hardened.

4.8
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3.9
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3.5
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5
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£9.90 £9.90 - £42.90
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