Forster .220 Swift SAAMI Dimensioned Go Length Rimless Headspace Gauge

Every gunsmith understands that the correct application of a headspace gauge is the most dependable method for assessing the length of a rifle chamber. Headspace refers to the distance between the breech face and the cartridge base when the action is closed. Excessive headspace can pose safety risks and compromise accuracy. For example, unsupported brass fired in a rifle with excessive headspace may rupture, causing gas to escape rearward in a manner similar to rocket exhaust. Given the critical