My Account (Sign in)
Your basket is empty.
0
Basket
contact us by phone Help and contact
Free standard delivery over £199
100-day return policy
My Account (Sign in)
Shopping list
Your basket is empty. (0)
Basket
Newsletter Newsletter
Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

Home Gunsmith Tools Measuring Tools Headspace Gauges CLYMER HEADSPACE GAUGES - NO-GO Support
Ensure safety with the Clymer No-Go Gauge for 45-70 Government rifles. 🛠️ Perfect for checking headspace before firing!

CLYMER HEADSPACE GAUGES - NO-GO - CLYMER 45-70 GOVERNMENT NO-GO GAUGE

184100331

Variations:

Ensure safety with the Clymer No-Go Gauge for 45-70 Government rifles. 🛠️ Perfect for checking headspace before firing!
CLYMER 45-70 GOVERNMENT NO-GO GAUGE
54.9 GBP 5 £54.90 *
In stock
Cartridge: 45-70 Government, 348 Winchester, 33 WCF, 40-65 Winchester
In stock
54.9 GBP 5 £54.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 221 Remington Fireball. 🛠️ Perfect for new barrels and used gun checks!
CLYMER 221 REMINGTON FIREBALL NO-GO GAUGE
42.9 GBP 4 £42.90 *
In stock
Cartridge: 221 Remington Fireball
In stock
42.9 GBP 4 £42.90 *
Ask question
Ensure safe chambering with the HEADSPACE GAUGES - NO-GO CLYMER 22 Long Rifle gauge. 🔍 Perfect for accurate measurements and checks!
CLYMER 22 LONG RIFLE NO-GO GAUGE
54.9 GBP 1 £54.90 *
In stock
Cartridge: 22 Long Rifle, 22 Short, 22 Long, 22 Bentz, 22 Match
In stock
54.9 GBP 1 £54.90 *
Ask question
Ensure a safe chamber with the HEADSPACE GAUGES - NO-GO CLYMER 6MM BR. 🛠️ Perfect for accurate measurement and testing!
CLYMER 6MM BR NO-GO GAUGE
54.9 GBP 2 £54.90 *
In stock
Cartridge: 6 mm BR Norma, 7 mm BR (Benchrest) Remington, 22 BR (Benchrest) Remington
In stock
54.9 GBP 2 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .22 Rimfire Mag 🔍. Perfect for 17 HMR, 22 WRF, and 22 RF cartridges!
CLYMER 22 WRF NO-GO GAUGE
49.9 GBP 2 £49.90 *
In stock
Cartridge: 17 HMR, 22 WRF, 22 RF
In stock
49.9 GBP 2 £49.90 *
Ask question
Ensure safe and accurate chambering with the Clymer 223 Remington No-Go Gauge. Perfect for checking headspace! 🔍
CLYMER 223 REMINGTON NO-GO GAUGE
54.9 GBP 7 £54.90 *
In stock
Cartridge: 223 Remington, 6 mm x 45
In stock
54.9 GBP 7 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .22-250 Remington. 🔧 Perfect for reliable headspace measurements!
CLYMER 22-250 REMINGTON NO-GO GAUGE
54.9 GBP 9 £54.90 *
In stock
Cartridge: 22-250 Remington
In stock
54.9 GBP 9 £54.90 *
Ask question
Ensure precision with Clymer's No-Go Gauge for .308 Winchester and more! 🔧 Perfect for your reloading needs.
CLYMER 308 WINCHESTER FAMILY NO-GO GAUGE
54.9 GBP 25 £54.90 *
In stock
Cartridge: 308 Winchester, 243 Winchester, 7 mm - 08 Remington, 358 Winchester, 260 Remington
In stock
54.9 GBP 25 £54.90 *
Ask question
Ensure precision with the Clymer 300 Savage No-Go Gauge. 🛠️ Perfect for checking headspace before firing your rifle!
CLYMER 300 SAVAGE NO-GO GAUGE
42.9 GBP 5 £42.90 *
In stock
Cartridge: 300 Savage
In stock
42.9 GBP 5 £42.90 *
Ask question
Ensure precision with the CLYMER 7x57mm Mauser No-Go Gauge. Perfect for .257 Roberts and 7mm Mauser cartridges. 🛠️ Get yours today!
CLYMER 7X57MM MAUSER NO-GO GAUGE
54.9 GBP 10 £54.90 *
In stock
Cartridge: 257 Roberts, 7 mm Mauser (7 x 57 mm Mauser)
In stock
54.9 GBP 10 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for 6.5x55mm Swedish Mauser. 🛠️ Perfect for your firearm needs!
CLYMER 6.5X55MM SWEDE NO-GO GAUGE
54.9 GBP 5 £54.90 *
In stock
Cartridge: 6.5 x 55 mm Swedish Mauser
In stock
54.9 GBP 5 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .30/30 Winchester 🔧. Perfect for various cartridges, it's a must-have for every gunsmith!
CLYMER 30-30 WINCHESTER NO-GO GAUGE
54.9 GBP 15 £54.90 *
In stock
Cartridge: 30-30 Winchester, 375 Winchester, 219 Zipper, 25-35 Winchester, 7-30 Waters, 30 Herrett, 32 Winchester Special, 32-40 Winchester, 356 Winchester, 303 Savage, 307 Winchester, 219 Donaldson Wasp, 357 Herrett
In stock
54.9 GBP 15 £54.90 *
Ask question
Ensure a safe chamber with the HEADSPACE GAUGES - No-Go Clymer 300 Remington Ultra Magnum. 🔧 Perfect for accurate rifle testing!
CLYMER 300 REMINGTON ULTRA MAGNUM NO-GO GAUGE
64.9 GBP 46 £64.90 *
In stock
Cartridge: 300 Remington Ultra Magnum, 7 mm Remington Ultra Magnum, 375 Remington Ultra Magnum
In stock
64.9 GBP 46 £64.90 *
Ask question
Ensure a safe chamber with the HEADSPACE GAUGES - NO-GO CLYMER 30-06. Perfect for testing used guns and new barrels! 🔍
CLYMER 30-06 SPRINGFIELD NO-GO GAUGE
54.9 GBP 10 £54.90 *
In stock
Cartridge: 30-06 Springfield, 270 Winchester, 25-06 Remington, 338-06, 35 Whelen, 6.5-06, 8 mm-06
In stock
54.9 GBP 10 £54.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 300 Win Mag & more. 🛠️ Perfect for testing used guns and new barrels!
CLYMER BELTED MAGNUM NO-GO GAUGE
49.9 GBP 2 £49.90 *
In stock
Cartridge: 300 Winchester Magnum, 375 H&H Magnum, 350 Remington Mag
In stock
49.9 GBP 2 £49.90 *
Ask question
Ensure safe chambering with the Clymer 9mm Luger No-Go Gauge. 🔧 Perfect for checking headspace on used guns!
CLYMER 9MM LUGER NO-GO GAUGE
54.9 GBP 15 £54.90 *
In stock
Cartridge: 9 mm Luger
In stock
54.9 GBP 15 £54.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 30 M1 Carbine. 🛠️ Perfect for checking headspace on used guns!
CLYMER 30 M1 CARBINE NO-GO GAUGE
49.9 GBP 8 £49.90 *
In stock
Cartridge: 30 Carbine
In stock
49.9 GBP 8 £49.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 25-20 Winchester. 🛠️ Perfect for checking used guns and chambering new barrels!
CLYMER 25-20 WINCHESTER NO-GO GAUGE
54.9 GBP 17 £54.90 *
In stock
Cartridge: 218 Bee, 25-20 Winchester, 32-20 Winchester, 218 Mashburn Bee
In stock
54.9 GBP 17 £54.90 *
Ask question
Ensure your rifle's safety with the CLYMER 357 Magnum No-Go Gauge. 🛠️ Perfect for checking headspace before firing!
CLYMER 357 MAGNUM NO-GO GAUGE
54.9 GBP 12 £54.90 *
In stock
Cartridge: 357 Magnum, 38 Special
In stock
54.9 GBP 12 £54.90 *
Ask question
Ensure a safe chamber with the Clymer 38 Super No-Go Gauge. 🛠️ Perfect for checking used guns and chambering new barrels!
CLYMER 38 SUPER NO-GO GAUGE
54.9 GBP 4 £54.90 *
In stock
Cartridge: 38 Super
In stock
54.9 GBP 4 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .40 S&W. 🛠️ Perfect for your firearm needs!
CLYMER 40 S&W NO-GO GAUGE
42.9 GBP 6 £42.90 *
In stock
Cartridge: 40 S&W
In stock
42.9 GBP 6 £42.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .44 Magnum 🔧. Ideal for accurate firearm measurements and compatibility.
CLYMER 44 MAGNUM NO-GO GAUGE
54.9 GBP 5 £54.90 *
In stock
Cartridge: 44 Magnum, 44 Special
In stock
54.9 GBP 5 £54.90 *
Ask question
Ensure safe chambering with the Clymer 45 ACP No-Go Gauge. 🔍 Accurate measurements for used guns and new barrels. Check headspace before firing!
CLYMER 45 ACP NO-GO GAUGE
49.9 GBP 42 £49.90 *
In stock
Cartridge: 45 Auto (ACP)
In stock
49.9 GBP 42 £49.90 *
Ask question
Ensure your rifle's chamber is safe with the Clymer 7.62x39mm No-Go Gauge. 🔧 Perfect for accurate measurements and testing!
CLYMER 7.62X39MM NO-GO GAUGE
54.9 GBP 11 £54.90 *
In stock
Cartridge: 7.62 x 39 mm Russian
In stock
54.9 GBP 11 £54.90 *
Ask question
Ensure precision with the CLYMER 7.62x54R No-Go Gauge 🔧 for your firearms. Perfect for Russian cartridges and reliable performance!
CLYMER 7.62X54R NO-GO GAUGE
54.9 GBP 43 £54.90 *
In stock
Cartridge: 7.62 x 54 mm Russian
In stock
54.9 GBP 43 £54.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 12 Gauge rifles. 🛠️ Perfect for testing used guns and new barrels!
CLYMER 12 GAUGE NO-GO GAUGE
69.9 GBP 15 £69.90 *
In stock
Cartridge: 12 Gauge
In stock
69.9 GBP 15 £69.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .204 Ruger 🔧. Perfect for your headspace measurements and cartridge compatibility!
CLYMER 204 RUGER NO-GO GAUGE
49.9 GBP 1 £49.90 *
In stock
Cartridge: 204 Ruger
In stock
49.9 GBP 1 £49.90 *
Ask question
Ensure your rifle's chamber is safe and accurate with the Clymer 5.56mm NATO No-Go Gauge. 🛠️ Perfect for new barrels and used guns!
CLYMER 5.56X45MM NATO NO-GO GAUGE
54.9 GBP 13 £54.90 *
In stock
Cartridge: 5.56 mm NATO
In stock
54.9 GBP 13 £54.90 *
Ask question
Ensure a safe chamber with the Clymer 300 AAC Blackout No-Go Gauge. 🛠️ Perfect for checking headspace before firing used guns!
CLYMER 300 AAC BLACKOUT NO-GO GAUGE
54.9 GBP 1 £54.90 *
In stock
Cartridge: 300 AAC Blackout
In stock
54.9 GBP 1 £54.90 *
Ask question
Ensure a safe chamber with the HEADSPACE GAUGES - NO-GO CLYMER 224 VALKYRIE. 🔍 Perfect for accurate measurement and testing!
CLYMER 224 VALYRIE NO-GO GAUGE
54.9 GBP 17 £54.90 *
In stock
Cartridge: 224 Valkyrie
In stock
54.9 GBP 17 £54.90 *
Ask question
Ensure a safe chamber with the CLYMER No-Go Gauge for 300 WSM rifles. Essential for accuracy and safety! 🔍 Check your headspace today!
CLYMER 300 WSM NO-GO GAUGE
64.9 GBP 0 £64.90 *
Reordered
Cartridge: 300 WSM (Winchester Short Mag), 270 WSM (Winchester Short Mag), 338 Winchester Magnum, 325 WSM (Winchester Short Mag)
Reordered
64.9 GBP 0 £64.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .30-40 Krag 🔧. Ideal for gunsmiths and enthusiasts alike!
CLYMER 30-40 KRAG NO-GO GAUGE
54.9 GBP 0 £54.90 *
Reordered
Cartridge: 30-40 Krag, 303 British
Reordered
54.9 GBP 0 £54.90 *
Ask question
Ensure a safe chamber with the Clymer 20 Gauge No-Go Gauge. 🛠️ Perfect for accurate headspace measurement and testing!
CLYMER 20 GAUGE NO-GO GAUGE
69.9 GBP 0 £69.90 *
Reordered
Cartridge: 20 Gauge
Reordered
69.9 GBP 0 £69.90 *
Ask question
Ensure a safe chamber with the CLYMER 6.5mm Creedmoor No-Go Gauge. 🔧 Perfect for checking headspace on used guns!
CLYMER 6.5MM CREEDMOOR NO-GO GAUGE
54.9 GBP 0 £54.90 *
Reordered
Cartridge: 6.5 Creedmoor, 6mm Creedmoor, 22 Creedmoor
Reordered
54.9 GBP 0 £54.90 *
Ask question
Ensure a safe chamber with the CLYMER No-Go Gauge for 22 Hornet 🔍. Perfect for checking used guns or chambering new barrels.
CLYMER 22 HORNET NO-GO GAUGE
Not available
Cartridge: 22 Hornet, 17 Hornet
Not available
45.9 GBP 0 £45.90 *
Ask question
Ensure your rifle's chamber is safe with the Clymer No-Go Gauge for 250 Savage. 🛠️ Accurate measurement for a reliable shooting experience!
CLYMER 250 SAVAGE NO-GO GAUGE
Not available
Cartridge: 250 Savage
Not available
48.9 GBP 0 £48.90 *
Ask question
Ensure your rifle's safety with the CLYMER No-Go Gauge for 45 Long Colt. 🛠️ Accurate measurement for a perfect chamber fit!
CLYMER 45 LONG COLT NO-GO GAUGE
Not available
Cartridge: 45 (Long) Colt
Not available
45.9 GBP 0 £45.90 *
Ask question
Ensure precision with the CLYMER .410 No-Go Gauge 🔧. Perfect for shotgun enthusiasts looking for reliability and accuracy.
CLYMER 410 BORE NO-GO GAUGE
Not available
Cartridge: .410 Bore
Not available
54.9 GBP 0 £54.90 *
Ask question
42.9 69.9 38 GBP
54.9 GBP 5 £54.90

Prices inclusive of duty & VAT.

Product no.: 184100331

Mfr. No.: NG4570GOVT

The only way to accurately measure and test the length of the chamber of the rifle. Essential when chambering a new barrel to ensure a tight, accurate, safe chamber. Whenever you buy a used gun, always check the headspace before firing. Gauges are etched with “Go” or “No-Go” and caliber/gauge name for easy identification. Both Forster and Clymer gauges are made to SAAMI specs.
In stock
6

Delivery time approx. 7-14 days.
5 pcs. in the USA warehouse

1
2
3
4
5
6
7
8
9
10+

Delivery time approx. 7-14 days.
5 pcs. in the USA warehouse

Wish List Ask question

Variations:

Ensure safety with the Clymer No-Go Gauge for 45-70 Government rifles. 🛠️ Perfect for checking headspace before firing!
CLYMER 45-70 GOVERNMENT NO-GO GAUGE
54.9 GBP 5 £54.90 *
In stock
Cartridge: 45-70 Government, 348 Winchester, 33 WCF, 40-65 Winchester
In stock
54.9 GBP 5 £54.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 221 Remington Fireball. 🛠️ Perfect for new barrels and used gun checks!
CLYMER 221 REMINGTON FIREBALL NO-GO GAUGE
42.9 GBP 4 £42.90 *
In stock
Cartridge: 221 Remington Fireball
In stock
42.9 GBP 4 £42.90 *
Ask question
Ensure safe chambering with the HEADSPACE GAUGES - NO-GO CLYMER 22 Long Rifle gauge. 🔍 Perfect for accurate measurements and checks!
CLYMER 22 LONG RIFLE NO-GO GAUGE
54.9 GBP 1 £54.90 *
In stock
Cartridge: 22 Long Rifle, 22 Short, 22 Long, 22 Bentz, 22 Match
In stock
54.9 GBP 1 £54.90 *
Ask question
Ensure a safe chamber with the HEADSPACE GAUGES - NO-GO CLYMER 6MM BR. 🛠️ Perfect for accurate measurement and testing!
CLYMER 6MM BR NO-GO GAUGE
54.9 GBP 2 £54.90 *
In stock
Cartridge: 6 mm BR Norma, 7 mm BR (Benchrest) Remington, 22 BR (Benchrest) Remington
In stock
54.9 GBP 2 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .22 Rimfire Mag 🔍. Perfect for 17 HMR, 22 WRF, and 22 RF cartridges!
CLYMER 22 WRF NO-GO GAUGE
49.9 GBP 2 £49.90 *
In stock
Cartridge: 17 HMR, 22 WRF, 22 RF
In stock
49.9 GBP 2 £49.90 *
Ask question
Ensure safe and accurate chambering with the Clymer 223 Remington No-Go Gauge. Perfect for checking headspace! 🔍
CLYMER 223 REMINGTON NO-GO GAUGE
54.9 GBP 7 £54.90 *
In stock
Cartridge: 223 Remington, 6 mm x 45
In stock
54.9 GBP 7 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .22-250 Remington. 🔧 Perfect for reliable headspace measurements!
CLYMER 22-250 REMINGTON NO-GO GAUGE
54.9 GBP 9 £54.90 *
In stock
Cartridge: 22-250 Remington
In stock
54.9 GBP 9 £54.90 *
Ask question
Ensure precision with Clymer's No-Go Gauge for .308 Winchester and more! 🔧 Perfect for your reloading needs.
CLYMER 308 WINCHESTER FAMILY NO-GO GAUGE
54.9 GBP 25 £54.90 *
In stock
Cartridge: 308 Winchester, 243 Winchester, 7 mm - 08 Remington, 358 Winchester, 260 Remington
In stock
54.9 GBP 25 £54.90 *
Ask question
Ensure precision with the Clymer 300 Savage No-Go Gauge. 🛠️ Perfect for checking headspace before firing your rifle!
CLYMER 300 SAVAGE NO-GO GAUGE
42.9 GBP 5 £42.90 *
In stock
Cartridge: 300 Savage
In stock
42.9 GBP 5 £42.90 *
Ask question
Ensure precision with the CLYMER 7x57mm Mauser No-Go Gauge. Perfect for .257 Roberts and 7mm Mauser cartridges. 🛠️ Get yours today!
CLYMER 7X57MM MAUSER NO-GO GAUGE
54.9 GBP 10 £54.90 *
In stock
Cartridge: 257 Roberts, 7 mm Mauser (7 x 57 mm Mauser)
In stock
54.9 GBP 10 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for 6.5x55mm Swedish Mauser. 🛠️ Perfect for your firearm needs!
CLYMER 6.5X55MM SWEDE NO-GO GAUGE
54.9 GBP 5 £54.90 *
In stock
Cartridge: 6.5 x 55 mm Swedish Mauser
In stock
54.9 GBP 5 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .30/30 Winchester 🔧. Perfect for various cartridges, it's a must-have for every gunsmith!
CLYMER 30-30 WINCHESTER NO-GO GAUGE
54.9 GBP 15 £54.90 *
In stock
Cartridge: 30-30 Winchester, 375 Winchester, 219 Zipper, 25-35 Winchester, 7-30 Waters, 30 Herrett, 32 Winchester Special, 32-40 Winchester, 356 Winchester, 303 Savage, 307 Winchester, 219 Donaldson Wasp, 357 Herrett
In stock
54.9 GBP 15 £54.90 *
Ask question
Ensure a safe chamber with the HEADSPACE GAUGES - No-Go Clymer 300 Remington Ultra Magnum. 🔧 Perfect for accurate rifle testing!
CLYMER 300 REMINGTON ULTRA MAGNUM NO-GO GAUGE
64.9 GBP 46 £64.90 *
In stock
Cartridge: 300 Remington Ultra Magnum, 7 mm Remington Ultra Magnum, 375 Remington Ultra Magnum
In stock
64.9 GBP 46 £64.90 *
Ask question
Ensure a safe chamber with the HEADSPACE GAUGES - NO-GO CLYMER 30-06. Perfect for testing used guns and new barrels! 🔍
CLYMER 30-06 SPRINGFIELD NO-GO GAUGE
54.9 GBP 10 £54.90 *
In stock
Cartridge: 30-06 Springfield, 270 Winchester, 25-06 Remington, 338-06, 35 Whelen, 6.5-06, 8 mm-06
In stock
54.9 GBP 10 £54.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 300 Win Mag & more. 🛠️ Perfect for testing used guns and new barrels!
CLYMER BELTED MAGNUM NO-GO GAUGE
49.9 GBP 2 £49.90 *
In stock
Cartridge: 300 Winchester Magnum, 375 H&H Magnum, 350 Remington Mag
In stock
49.9 GBP 2 £49.90 *
Ask question
Ensure safe chambering with the Clymer 9mm Luger No-Go Gauge. 🔧 Perfect for checking headspace on used guns!
CLYMER 9MM LUGER NO-GO GAUGE
54.9 GBP 15 £54.90 *
In stock
Cartridge: 9 mm Luger
In stock
54.9 GBP 15 £54.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 30 M1 Carbine. 🛠️ Perfect for checking headspace on used guns!
CLYMER 30 M1 CARBINE NO-GO GAUGE
49.9 GBP 8 £49.90 *
In stock
Cartridge: 30 Carbine
In stock
49.9 GBP 8 £49.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 25-20 Winchester. 🛠️ Perfect for checking used guns and chambering new barrels!
CLYMER 25-20 WINCHESTER NO-GO GAUGE
54.9 GBP 17 £54.90 *
In stock
Cartridge: 218 Bee, 25-20 Winchester, 32-20 Winchester, 218 Mashburn Bee
In stock
54.9 GBP 17 £54.90 *
Ask question
Ensure your rifle's safety with the CLYMER 357 Magnum No-Go Gauge. 🛠️ Perfect for checking headspace before firing!
CLYMER 357 MAGNUM NO-GO GAUGE
54.9 GBP 12 £54.90 *
In stock
Cartridge: 357 Magnum, 38 Special
In stock
54.9 GBP 12 £54.90 *
Ask question
Ensure a safe chamber with the Clymer 38 Super No-Go Gauge. 🛠️ Perfect for checking used guns and chambering new barrels!
CLYMER 38 SUPER NO-GO GAUGE
54.9 GBP 4 £54.90 *
In stock
Cartridge: 38 Super
In stock
54.9 GBP 4 £54.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .40 S&W. 🛠️ Perfect for your firearm needs!
CLYMER 40 S&W NO-GO GAUGE
42.9 GBP 6 £42.90 *
In stock
Cartridge: 40 S&W
In stock
42.9 GBP 6 £42.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .44 Magnum 🔧. Ideal for accurate firearm measurements and compatibility.
CLYMER 44 MAGNUM NO-GO GAUGE
54.9 GBP 5 £54.90 *
In stock
Cartridge: 44 Magnum, 44 Special
In stock
54.9 GBP 5 £54.90 *
Ask question
Ensure safe chambering with the Clymer 45 ACP No-Go Gauge. 🔍 Accurate measurements for used guns and new barrels. Check headspace before firing!
CLYMER 45 ACP NO-GO GAUGE
49.9 GBP 42 £49.90 *
In stock
Cartridge: 45 Auto (ACP)
In stock
49.9 GBP 42 £49.90 *
Ask question
Ensure your rifle's chamber is safe with the Clymer 7.62x39mm No-Go Gauge. 🔧 Perfect for accurate measurements and testing!
CLYMER 7.62X39MM NO-GO GAUGE
54.9 GBP 11 £54.90 *
In stock
Cartridge: 7.62 x 39 mm Russian
In stock
54.9 GBP 11 £54.90 *
Ask question
Ensure precision with the CLYMER 7.62x54R No-Go Gauge 🔧 for your firearms. Perfect for Russian cartridges and reliable performance!
CLYMER 7.62X54R NO-GO GAUGE
54.9 GBP 43 £54.90 *
In stock
Cartridge: 7.62 x 54 mm Russian
In stock
54.9 GBP 43 £54.90 *
Ask question
Ensure a safe chamber with the Clymer No-Go Gauge for 12 Gauge rifles. 🛠️ Perfect for testing used guns and new barrels!
CLYMER 12 GAUGE NO-GO GAUGE
69.9 GBP 15 £69.90 *
In stock
Cartridge: 12 Gauge
In stock
69.9 GBP 15 £69.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .204 Ruger 🔧. Perfect for your headspace measurements and cartridge compatibility!
CLYMER 204 RUGER NO-GO GAUGE
49.9 GBP 1 £49.90 *
In stock
Cartridge: 204 Ruger
In stock
49.9 GBP 1 £49.90 *
Ask question
Ensure your rifle's chamber is safe and accurate with the Clymer 5.56mm NATO No-Go Gauge. 🛠️ Perfect for new barrels and used guns!
CLYMER 5.56X45MM NATO NO-GO GAUGE
54.9 GBP 13 £54.90 *
In stock
Cartridge: 5.56 mm NATO
In stock
54.9 GBP 13 £54.90 *
Ask question
Ensure a safe chamber with the Clymer 300 AAC Blackout No-Go Gauge. 🛠️ Perfect for checking headspace before firing used guns!
CLYMER 300 AAC BLACKOUT NO-GO GAUGE
54.9 GBP 1 £54.90 *
In stock
Cartridge: 300 AAC Blackout
In stock
54.9 GBP 1 £54.90 *
Ask question
Ensure a safe chamber with the HEADSPACE GAUGES - NO-GO CLYMER 224 VALKYRIE. 🔍 Perfect for accurate measurement and testing!
CLYMER 224 VALYRIE NO-GO GAUGE
54.9 GBP 17 £54.90 *
In stock
Cartridge: 224 Valkyrie
In stock
54.9 GBP 17 £54.90 *
Ask question
Ensure a safe chamber with the CLYMER No-Go Gauge for 300 WSM rifles. Essential for accuracy and safety! 🔍 Check your headspace today!
CLYMER 300 WSM NO-GO GAUGE
64.9 GBP 0 £64.90 *
Reordered
Cartridge: 300 WSM (Winchester Short Mag), 270 WSM (Winchester Short Mag), 338 Winchester Magnum, 325 WSM (Winchester Short Mag)
Reordered
64.9 GBP 0 £64.90 *
Ask question
Ensure precision with the CLYMER No-Go Gauge for .30-40 Krag 🔧. Ideal for gunsmiths and enthusiasts alike!
CLYMER 30-40 KRAG NO-GO GAUGE
54.9 GBP 0 £54.90 *
Reordered
Cartridge: 30-40 Krag, 303 British
Reordered
54.9 GBP 0 £54.90 *
Ask question
Ensure a safe chamber with the Clymer 20 Gauge No-Go Gauge. 🛠️ Perfect for accurate headspace measurement and testing!
CLYMER 20 GAUGE NO-GO GAUGE
69.9 GBP 0 £69.90 *
Reordered
Cartridge: 20 Gauge
Reordered
69.9 GBP 0 £69.90 *
Ask question
Ensure a safe chamber with the CLYMER 6.5mm Creedmoor No-Go Gauge. 🔧 Perfect for checking headspace on used guns!
CLYMER 6.5MM CREEDMOOR NO-GO GAUGE
54.9 GBP 0 £54.90 *
Reordered
Cartridge: 6.5 Creedmoor, 6mm Creedmoor, 22 Creedmoor
Reordered
54.9 GBP 0 £54.90 *
Ask question
Ensure a safe chamber with the CLYMER No-Go Gauge for 22 Hornet 🔍. Perfect for checking used guns or chambering new barrels.
CLYMER 22 HORNET NO-GO GAUGE
Not available
Cartridge: 22 Hornet, 17 Hornet
Not available
45.9 GBP 0 £45.90 *
Ask question
Ensure your rifle's chamber is safe with the Clymer No-Go Gauge for 250 Savage. 🛠️ Accurate measurement for a reliable shooting experience!
CLYMER 250 SAVAGE NO-GO GAUGE
Not available
Cartridge: 250 Savage
Not available
48.9 GBP 0 £48.90 *
Ask question
Ensure your rifle's safety with the CLYMER No-Go Gauge for 45 Long Colt. 🛠️ Accurate measurement for a perfect chamber fit!
CLYMER 45 LONG COLT NO-GO GAUGE
Not available
Cartridge: 45 (Long) Colt
Not available
45.9 GBP 0 £45.90 *
Ask question
Ensure precision with the CLYMER .410 No-Go Gauge 🔧. Perfect for shotgun enthusiasts looking for reliability and accuracy.
CLYMER 410 BORE NO-GO GAUGE
Not available
Cartridge: .410 Bore
Not available
54.9 GBP 0 £54.90 *
Ask question

Description:

Absolutely Essential For Accurate, Safe, Chamber Work
The only way to accurately measure and test the length of the chamber of the rifle. Essential when chambering a new barrel to ensure a tight, accurate, safe chamber. Whenever you buy a used gun, always check the headspace before firing. Gauges are etched with “Go” or “No-Go” and caliber/gauge name for easy identification. Both Forster and Clymer gauges are made to SAAMI specs.

Top takeaways

  1. The Clymer 45-70 Government No-Go Gauge is essential for measuring the chamber length of a rifle, crucial for safety and precision, especially when fitting a new barrel or purchasing a used firearm.
  2. Each gauge is clearly marked with "Go" or "No-Go" and the caliber for easy identification, and is made according to SAAMI specifications to ensure reliability.
  3. The gauges are made of machined steel and are interchangeable among various calibers that share the same stock number, enhancing their versatility for different firearms.

Attributes

  • Cartridge: 33 WCF,348 Winchester,40-65 Winchester,45-70 Government
  • Style: No Go Gauge
  • Delivery weight: 0.018kg
  • Shipping height: 18mm
  • Shipping width: 18mm
  • Shipping length: 58mm

Item details

Made in USA

Customers reviews

Customer ratings (6)

4.8 / 5
Definitely recommended

Brownells USA I used this to check Colt SAA 1st Gen 14/07/2018

1st Gen Colt SAA checked out OK with this gauge. Works as advertised. Had to remove cylinder to get the gauge out, since it would not rotate into recoil plate.















Definitely recommended

Brownells USA Works 30/03/2017

Works as advertized.

Customers also bought

Ensure safe chambering with the HEADSPACE GAUGES - GO CLYMER 7MM MAUSER GO GAUGE. 🔧 Perfect for checking headspace accuracy!
CLYMER
CLYMER 7MM MAUSER GO GAUGE
HEADSPACE GAUGES - GO
Headspace Gauges
3.5
In stock
£54.90 £42.90 - £69.90
Ensure safe chambering with the CLYMER 22 Long Rifle GO/NO-GO Gauge Set. 🛠️ Precision tools for accurate headspace checks!
CLYMER
CLYMER 22 LONG RIFLE HEADSPACE GAUGE KIT
GO/NO-GO GAUGE SETS
Headspace Gauges
4.9
In stock
£99.90 £99.90 - £134.90
Ensure a safe chamber with the HEADSPACE GAUGES FORSTER PRODUCTS, INC. 22 Long Rifle GO GAUGE. Accurate measurement for precision shooting! 🎯
FORSTER PRODUCTS, INC.
FORSTER PRODUCTS, INC. 22 LONG RIFLE GO GAUGE
HEADSPACE GAUGES
Headspace Gauges | Case Gauges & Headspace Tools
3.9
In stock
£49.90 £33.90 - £49.90
Site Navigation
Product Categories
Ordering
Customer Service

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.

Brownells Norge - Komplett utvalg av ladeutstyr, våpendeler, kuler, hylser, kikkerter, optikk og luftvåpen Brownells Österreich - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Switzerland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Deutschland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells France - Le plus grand fournisseur d'Accessoires pour le tir, Pièces détachées & Outils d'Armurier Brownells Iberica - El mayor proveedor de accesorios para el Tiro, Piezas y herramientas del armero. Brownells Sverige - Världens största leverantör av Vapendelar, Vapensmide Verktyg & Skyttetillbehör Brownells Suomi Brownells Italia - Il negozio del più grande rivenditore di componenti e accessori per armi da tiro, difesa e caccia Brownells Polska - Największy na świecie dostawca części broni, narzędzi rusznikarskich & akcesoriów strzeleckich Brownells Česko - Největší světový dodavatel součástí zbraní, střeleckého příslušenství a zbrojního nářadí
*
Prices inclusive of duty & VAT.

© 2025 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical viewClassical view Mobile viewMobile view
Back to top