Unprimed Brass Cases
45 Auto Brass (Large Pistol primer)45 ACP, 45 Automatic, 45 Automatic Colt Pistol
0.892 - 0.897 O.A.L.
.45 Auto Brass: Designed by John Browning, the .45 Auto, or .45 ACP, has been adopted at one point or another by several governments as their official military handgun chambering. It is still popular in the U.S. as a personal defense or target gun.