... and accurate method for sighting in any 204 firearm. Simply chamber the 204 bore sighter like a regular bullet and ... also can provide series of Bore Sight, they are. 223, 204,30Carbine, 9mm, .22, 7.62x39, 7.62x51, 7.62x54 ... 6.5x55mm, 38Spec, 44Mag, 45Acp, 45Colt, 40S&W, 12Gauge, 20Gauge,40S&W Bore Sight. As well as various types of Arbor ... gun types. 100% brass and gold-plated bore sighter 204