Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage
Menu

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 longer than the SAMMI-recommended to identify excessive chamber depth and an unsafe condition. 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.


AR-15, Issue:11, Page:087
Big Book Catalog, Issue:69, Page:085
Big Book Catalog, Issue:69, Page:460

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

MANSON PRECISION - RIMLESS RIFLE/SHOTGUN CARTRIDGE HEADSPACE GAUGES

narrow your choices »
Show Filters
45 Item(s)

$30.00

Online Only
In Stock

Cartridge: 204 Ruger

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 204 Ruger

Style: No Go Gauge

$30.00

Special Order, See Associate
Special Order Item: Please allow 5-8 weeks additional processing time.

Cartridge: 220 Swift

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 223 Remington

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 223 Remington

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 22-250 Remington

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 22-250 Remington

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 22-250 Ackley

Style: Go Gauge

$30.00

Backorder, See Associate
Out of Stock

Cartridge: 6.8 mm Remington SPC

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 6.8 mm Remington SPC

Style: No Go Gauge

$30.00

Backorder, See Associate
Out of Stock

Cartridge: 7 mm WSM (Winchester Short Magnum)

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 7 mm WSM (Winchester Short Magnum)

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 7.62 x 39 mm

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 7.62 x 39 mm

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 7.62 x 39 mm

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 7.62 x 39 mm

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 30 Carbine

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 30 Carbine

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 243 Winchester, 6.5/308 Winchester, 7 mm - 08 Remington

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 243 Winchester, 6.5/308 Winchester, 7 mm - 08 Remington

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 300 Remington Ultra Magnum

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 300 Remington Ultra Magnum

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 300 WSM (Winchester Short Mag)

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 300 WSM (Winchester Short Mag)

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 8 mm Mauser (8 x 57 mm Mauser)

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 8 mm Mauser (8 x 57 mm Mauser)

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 270 Winchester, 30-06 Springfield, 35 Whelen

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 270 Winchester, 30-06 Springfield, 35 Whelen

Style: No Go Gauge

$60.00

Online Only
In Stock

Cartridge: 50 BMG

Style: Go Gauge

$60.00

Online Only
In Stock

Cartridge: 50 BMG

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 12 Gauge

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 12 Gauge

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 5.45 x 39 mm

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 5.45 x 39 mm

Style: No Go Gauge

$30.00

Backorder, See Associate
Out of Stock

Cartridge: 6.5 Grendel

Style: Go Gauge

$30.00

Backorder, See Associate
Out of Stock

Cartridge: 6.5 Grendel

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 338 Lapua

Style: No Go Gauge

$30.00

Online Only
In Stock

Cartridge: 338 Lapua

Style: Go Gauge

$30.00

Special Order, See Associate
Special Order Item: Please allow 5-8 weeks additional processing time.

Cartridge: 7.62 x 25 mm Tokarev

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 221 Remington Fireball

Style: Go Gauge

$30.00

Online Only
In Stock

Cartridge: 221 Remington Fireball

Style: No Go Gauge

$30.00

Backorder, See Associate
Out of Stock

Cartridge: 6.5 Creedmoor

Style: Go Gauge

$30.00

Backorder, See Associate
Out of Stock

Cartridge: 6.5 Creedmoor

Style: No Go Gauge