.38 ACP
Pistol cartridge designed by John Moses Browning / From Wikipedia, the free encyclopedia
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Not to be confused with .380 ACP.
The .38 ACP (Automatic Colt Pistol), also known as the .38 Auto, .38 Automatic, or 9x23mmSR, is a semi-rimmed pistol cartridge that was introduced at the turn of the 20th century for the John Browning-designed Colt M1900. It was first used in Colt's Model 1897 prototype, which he did not produce. The metric designation for the round is 9×23mm SR (semi-rimmed), which is not to be confused with other 9×23mm cartridges.
Quick Facts Type, Place of origin ...
.38 ACP | ||||||||||||||||
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Type | Pistol | |||||||||||||||
Place of origin | United States | |||||||||||||||
Production history | ||||||||||||||||
Designer | John Browning | |||||||||||||||
Designed | 1900 | |||||||||||||||
Manufacturer | Colt | |||||||||||||||
Produced | 1900–present | |||||||||||||||
Variants | .38 Super | |||||||||||||||
Specifications | ||||||||||||||||
Case type | Semi-rimmed, straight | |||||||||||||||
Bullet diameter | .356 in (9.0 mm) | |||||||||||||||
Land diameter | .346 in (8.8 mm) | |||||||||||||||
Neck diameter | .384 in (9.8 mm) | |||||||||||||||
Base diameter | .384 in (9.8 mm) | |||||||||||||||
Rim diameter | .406 in (10.3 mm) | |||||||||||||||
Rim thickness | .050 in (1.3 mm) | |||||||||||||||
Case length | .900 in (22.9 mm) | |||||||||||||||
Overall length | 1.28 in (33 mm) | |||||||||||||||
Primer type | Small pistol | |||||||||||||||
Maximum pressure | 26,500 psi (183 MPa) | |||||||||||||||
Ballistic performance | ||||||||||||||||
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Source(s): Cartridges of the World[1] |
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