.30-06 Headspace Go Gauge
.30-06 Headspace Go Gauge, 30-06 Headspace Go Gauge GO: Corresponds to the minimum chamber dimensions If a rifle closes on a GO gauge, the chamber will accept ammunition that is made to SAAMI s maximum specifications The GO gauge is essential for checking a newly-reamed chamber in order to ensure a tight, accurate and safe chamber that will accept SAAMI maximum ammo Although the GO gauge is necessary for a gunsmith or armorer, it usually has fewer applications for the collector or surplus firearms purchaser 30-06 Springfield headspace gauges are usable in 25-06, 270 Winchester, 6 5-06, 8mm-06, 338-06, and 35 Whelen chambers