.45 Colt
Revolver cartridge designed by the U.S. Army / From Wikipedia, the free encyclopedia
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Not to be confused with .45 ACP.
This article is about the ammo weapon. For other uses, see Colt 45.
The .45 Colt (11.43×33mmR), is a rimmed, straight-walled, handgun cartridge dating to 1872. It was originally a black-powder revolver round developed for the Colt Single Action Army revolver. This cartridge was adopted by the U.S. Army in 1873 and served as an official US military handgun cartridge for 19 years, before being replaced by the .38 Long Colt in 1892.
Quick Facts Type, Place of origin ...
.45 Colt | ||||||||||||||||||||||||
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Type | Revolver | |||||||||||||||||||||||
Place of origin | United States | |||||||||||||||||||||||
Service history | ||||||||||||||||||||||||
In service | 1873–1892 | |||||||||||||||||||||||
Used by | United States | |||||||||||||||||||||||
Wars | Indian Wars, Spanish–American War, Philippine–American War, Moro Rebellion | |||||||||||||||||||||||
Production history | ||||||||||||||||||||||||
Designer | U.S. Army | |||||||||||||||||||||||
Designed | 1872 | |||||||||||||||||||||||
Produced | 1873–present | |||||||||||||||||||||||
Variants | .45 Colt +P | |||||||||||||||||||||||
Specifications | ||||||||||||||||||||||||
Case type | Rimmed, straight | |||||||||||||||||||||||
Bullet diameter | .452 in (11.5 mm) | |||||||||||||||||||||||
Neck diameter | .480 in (12.2 mm) | |||||||||||||||||||||||
Base diameter | .480 in (12.2 mm) | |||||||||||||||||||||||
Rim diameter | .512 in (13.0 mm) | |||||||||||||||||||||||
Rim thickness | .060 in (1.5 mm) | |||||||||||||||||||||||
Case length | 1.285 in (32.6 mm) | |||||||||||||||||||||||
Overall length | 1.600 in (40.6 mm) | |||||||||||||||||||||||
Case capacity | 41.60 gr H2O (2.696 cm3) | |||||||||||||||||||||||
Rifling twist | 1 in 16 in (410 mm) | |||||||||||||||||||||||
Primer type | Large Pistol | |||||||||||||||||||||||
Maximum pressure (CIP) | 15,900 psi (110 MPa) | |||||||||||||||||||||||
Maximum pressure (SAAMI) | 14,000 psi (97 MPa) | |||||||||||||||||||||||
Ballistic performance | ||||||||||||||||||||||||
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