Description

The Lock-N-Load Headspace Comparator extends brass life, improves accuracy, and enhances safety. The gauge measures variations in brass before and after firing or re-sizing. It allows for headspace comparison between fire-formed brass and re-sized brass. Fits: 17 Remington, 204 Ruger, 221 Remington Fireball, 222 Remington, 222 Remington Magnum, 223 Remington, 220 Swift