Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

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.


AR-15, Issue:09, Page:080
Big Book Catalog, Issue:66, Page:078
Big Book Catalog, Issue:66, Page:478
Law Enforcement / Police Store, Issue:08, Page:054
New Product Supplement, Issue:611, Page:017
SPECS: Machined Steel. Size varies with caliber and gauge style. NOTE: Gauges Interchangeable between calibers have same Stock #. .30/30 Cartridges are .219 Wasp, .219 Zipper, .22 Sav HP, .30-30, .32 Win Spl, .32-40, .375 Win and .38-55. .30/06 Cartridges are .25-06, 6.5mm-06, .270 Win, .30-06, 8mm-06, .338-06 and .35 Whelen. Magnum Cartridges are .257 Weatherby, .264 Win, 6.5 Rem Mag, .270 Weatherby, .275 H&H, 7mm Rem Mag, 7mm Weatherby, 7x61 S&H, .300 H&H, .300 Win Mag, .30-338, .300 Weatherby, .308 Norma, 8mm Mag, .338 Win, .340 Weatherby, .350 Rem Mag, .357 Norma, .375 H&H, .416 Rem Mag and .458 Win.

CLYMER - CLYMER HEADSPACE GAUGES - GO

$39.99

In Stock

Cartridge: 300 AAC Blackout

Style: Go Gauge

$35.00

In Stock

Cartridge: 17 HMR, 22 Long Rifle, 22 WRF

Style: Go Gauge

.204 RUGER GO HEADSPACE GAUGE.
184-000-033WB
GO, .204 Ruger

Mfr Part: GO204RUGER

$33.99

In Stock

Cartridge: 204 Ruger

Style: Go Gauge

$34.99

In Stock

Cartridge: 22 WMR, 22 WRF

Style: Go Gauge

$34.99

In Stock

Cartridge: 22 Hornet

Style: Go Gauge

$35.00

In Stock

Cartridge: 30-30 Winchester

Style: Go Gauge

$33.99

In Stock

Cartridge: 221 Remington Fireball

Style: Go Gauge

223 REM GO CLYMER HEADSPACE GAUGE
184-100-240WB
GO, .223 Rem

Mfr Part: G0223REM

$33.99

In Stock

Cartridge: 223 Remington

Style: Go Gauge

5.56 NATO GO HEADSPACE GAUGE
184-000-035WB
GO, 5.56 NATO

Mfr Part: GO556NATO

$39.99

In Stock

Cartridge: 5.56 mm NATO

Style: Go Gauge

$33.99

In Stock

Cartridge: 6 mm BR Norma, 7 mm BR (Benchrest) Remington

Style: Go Gauge

22/250 GO CLYMER HEADSPACE GAUGE
184-100-250WB
GO, .22-250

Mfr Part: G022250

$34.99

Out of Stock View Alternatives

Cartridge: 22-250 Remington

Style: Go Gauge

$33.99

In Stock

Cartridge: 243 Winchester, 308 Winchester, 358 Winchester

Style: Go Gauge

6MM REM GO CLYMER HEADSPACE GAUGE
184-100-270WB
GO, 6mm Rem

Mfr Part: G06MMREM

$25.99 $33.99

In Stock

Cartridge: 6 mm Remington

Style: Go Gauge

$34.99

In Stock

Style: Go Gauge

250 SAVAGE GO HEADSPACE GAUGE
184-100-255WB
GO, .250 Savage

Mfr Part: G0250SAV

$33.99

In Stock

Cartridge: 250 Savage

Style: Go Gauge

$33.99

In Stock

Cartridge: 30-06 Springfield

Style: Go Gauge

$35.00

In Stock

Style: Go Gauge

6.5X55 GO CLYMER HEADSPACE GAUGE
184-100-290WB
GO, 6.5x55

Mfr Part: G06555

$33.99

In Stock

Cartridge: 6.5 x 55 mm Swedish Mauser

Style: Go Gauge

$33.99

In Stock

Cartridge: 9 mm x 57 Mauser

Style: Go Gauge

284 WIN GO CLYMER HEADSPACE GAUGE
184-100-287WB
GO, .284 Win

Mfr Part: GO284WIN

$33.99

In Stock

Cartridge: 284 Winchester

Style: Go Gauge

$35.00

In Stock

Cartridge: 30 Carbine

Style: Go Gauge

300 SAVAGE GO HEADSPACE GAUGE
184-100-265WB
GO, .300 Savage

Mfr Part: G0300SAV

$29.99

In Stock

Cartridge: 300 Savage

Style: Go Gauge

$35.00

In Stock

Cartridge: 303 British, 30-40 Krag

Style: Go Gauge

$33.99

Out of Stock View Alternatives

Cartridge: 300 Remington Ultra Magnum

Style: Go Gauge

$33.99

In Stock

Cartridge: 300 WSM (Winchester Short Mag)

Style: Go Gauge

$33.99

In Stock

Cartridge: 7.62 x 39 mm Russian

Style: Go Gauge

$35.00

In Stock

Cartridge: 7.62 x 54 mm Russian

Style: Go Gauge

$34.99

In Stock

Cartridge: 33 WCF, 348 Winchester, 40-65 Winchester, 45-70 Government

Style: Go Gauge

$35.00

Out of Stock

Cartridge: 38 Super

Style: Go Gauge

$35.00

In Stock

Cartridge: 357 Magnum, 38 Special

Style: Go Gauge

40 S&W GO CLYMER HEADSPACE GAUGE
184-100-400WB
GO, .40 S&W

Mfr Part: G040SW

$33.99

In Stock

Cartridge: 40 S&W

Style: Go Gauge

$26.99 $34.99

In Stock

Cartridge: 38-40 Winchester, 44-40 Winchester

Style: Go Gauge

$34.99

In Stock

Cartridge: 44 Magnum, 44 Special

Style: Go Gauge

45 ACP GO CLYMER HEADSPACE GAUGE
184-100-450WB
GO, .45 ACP

Mfr Part: G045ACP

$33.99

Out of Stock View Alternatives

Cartridge: 45 Auto (ACP)

Style: Go Gauge

.45 COLT GO CLYMER H'SPACE GAUGE
184-100-510WB
GO, .45 Colt

Mfr Part: G045LC

$34.99

In Stock

Cartridge: 45 (Long) Colt

Style: Go Gauge

$52.99

In Stock

Cartridge: .410 Bore

Style: Go Gauge

$52.99

In Stock

Cartridge: 20 Gauge

Style: Go Gauge

$52.99

In Stock

Cartridge: 12 Gauge

Style: Go Gauge

Discontinued by Brownells

Product has been discontinued and no longer available.