22PPC & 6MM PPC Headspace No Go Guage

Every  gunsmith knows that proper use of a headspace gage is the most reliable  way to test the length of a rifle chamber. “Headspace”  is the distance between the face of the breech and the base of the  cartridge when the action is closed, and excessive headspace can  be dangerous as well as impair accuracy. For instance, unsupported  brass fired in a rifle action with excessive headspace can rupture,  allowing gas to blow rearward like a rocket exhaust. Because your  safety is on the line, Forster Headspace Gages are made with painstaking  care and exacting manufacturing standards to ensure accurate testing  of your rifle’s chamber. If a rifle closes on a GO gage, the  rifle chamber will accept any ammunition that is made within S.A.A.M.I.  (industry standard) specifications. If a rifle closes on a NO GO  gage, the rifle chamber might have excessive headspace. Most gunsmiths  chamber a rifle’s headspace between the GO and NO GO dimensions.  If a rifle closes on a FIELD gage, the rifle chamber is dangerously  close to or already over the S.A.A.M.I. specified maximum chamber  size.