NEW STARLINE .45 COLT 200+ Large Pistol Primer 1.270 - 1.280 O.A.L. 45 Colt Brass. Originally designed for use with black powder, the .45 Colt is one of the most powerful, commonly available handgun cartridges when loaded with smokeless powder. Our .45 Colt brass has been tested to .44 Magnum pressures in gun systems suitable for such loads. |