Semi-automatic pistols have greatly improved over time.
Key point: There are more choices of .45 ACP pistols than ever before.
The .45 Automatic Colt Pistol round, or .45 ACP as it is commonly known, is fairly controversial. Invented in 1905 by prolific firearms designer John Moses Browning, the .45 ACP was the standard caliber of the Colt M1911 pistol, and remains so to this day. A heavy, subsonic bullet, a typical .45 ACP weighs twice as much as the 9mm Luger round...
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