ACP vs Auto – Difference and Comparison
What is ACP? When John Moses Browning designed the ACP (Automatic Colt Pistol) or.45 Auto (11.4323mm) ammo in 1904, he was using it in his experimental Colt semiautomatic handgun, which he called the Colt. In the aftermath of successful military tests, it was determined to be the official chambering for Colt’s M1911 handgun and was […]