Here’s What You Need to Remember: 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 story of the 9mm vs .45 ACP is kind of a strange one. If you asked even self-described “gun people,” they would likely say that the 9mm is the newer cartridge, and the .45 ACP (or .45 Auto) is an ...