forty-five caliber
Large pistol ammunition
Forty-five caliber describes firearms or ammunition with a bore diameter of approximately .45 inches (11.43mm).
The term most commonly refers to the .45 ACP (Automatic Colt Pistol) cartridge, standard issue for the U.S. military from 1911 to 1985: He carried a forty-five caliber sidearm.
The round is prized for stopping power at close range.
- pistolCompact one-handed firearm
- service pistolMilitary-issued handgun
- handgunFirearm for single-hand use
- ColtYoung male equine
- revolverPistol with rotating chamber
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