308 Winchester Headspace Gauge Set GO - NO-GO - Field

308 Winchester Headspace Gauge Set GO - NO-GO - Field
- 243 WIN: Use to check headspace of 243 Win., 260 Rem., 7mm-08, 308 Win., 338 Fed, & 358 Win. Manufactured from top-quality, hardened steel and precision ground to ANSI and SAAMI tolerances. Headspace tolerance ground to a very exacting ±.00015. Each Headspace Gage thoroughly inspected with NIST-certified measurement tools to ensure the highest quality product.
- RIMLESS CARTRIDGE HEADSPACE: The proper use of Headspace Gages is the most reliable way to test rifle chamber length. Headspace in a rimless cartridge is the distance between the bolt face and a datum line, determined by SAAMI, where the front of the cartridge rests on its shoulder when the bolt is closed.
- NO-GO: Corresponds to the maximum headspace we recommend for gunsmiths’ chambering new bolt-action rifles. This is not a SAAMI-maximum measurement. If a rifle closes on a NO-GO gage, it may still be within SAAMI specifications, or it may have excessive headspace. To determine if there is excessive headspace, the chamber should then be checked with a FIELD gage. The NO-GO gage is a valuable tool for gunsmiths’ reaming new chambers, in order to ensure tight and accurate headspace
- GO: Corresponds to the minimum chamber dimensions. If a rifle closes on a GO gage, the chamber will accept ammunition that is made to SAAMI maximum specifications. The GO gage is essential for checking a newly-reamed chamber in order to ensure a tight, accurate, and safe chamber that will accept SAAMI maximum ammo.
- FIELD: FIELD gages are slightly shorter than the SAAMI maximum in order to give a small safety margin. If a rifle closes on a FIELD gage, its chamber is dangerously close to, or longer than, SAAMI-specified maximum chamber size. If chamber headspace is excessive, the gun should be taken out of service until it has been inspected and repaired by a competent gunsmith.
Country USA
Brand Forster Products
Manufacturer Forster Products
Binding Misc.
ItemPartNumber 308G-308N-308F
UnitCount 1
UPCs 617353038583
EANs 0617353038583
ReleaseDate 0000-00-00

Country	USA
Brand	Forster Products
Manufacturer	Forster Products
Binding	Misc.
ItemPartNumber	308G-308N-308F
UnitCount	1
UPCs	617353038583
EANs	0617353038583
ReleaseDate	0000-00-00

308 Winchester Headspace Gauge Set GO - NO-GO - Field

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