Headspace Gauge 8x57 Mauser NO GO
The No-GO gauge is used to measure the Maximum recommended chamber headspace.If the bolt closes on a NOGO gauge, it is out of the recomended good condition range, and should then be checked with a Field Gauge to determine if it is still safe headspace.When setting new headspace such as for a rechamber job the bolt should not close on the NO-GO gauge.This gauge ships only in the USA, No export or APO.