In this article, we will delve into the fascinating topic of .25 ACP, exploring its origins, evolution and relevance in today's society. Since its inception, .25 ACP has played a crucial role in various aspects of everyday life, influencing everything from culture and the arts to technology and economics. Over the years, .25 ACP has undergone significant changes, adapting to new paradigms and challenges that have arisen over time. Through a deep and detailed analysis, we will discover the many facets of .25 ACP and its impact on the contemporary world, as well as the different perspectives that exist around this important topic.
.25 ACP | ||||||||||||||||
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Type | Pistol | |||||||||||||||
Place of origin | United States and Belgium | |||||||||||||||
Production history | ||||||||||||||||
Designer | John Browning | |||||||||||||||
Designed | 1905 | |||||||||||||||
Produced | 1905–present | |||||||||||||||
Specifications | ||||||||||||||||
Case type | Semi-rimmed, straight | |||||||||||||||
Bullet diameter | .2512 in (6.38 mm) | |||||||||||||||
Land diameter | .2429 in (6.17 mm) | |||||||||||||||
Neck diameter | .276 in (7.0 mm) | |||||||||||||||
Base diameter | .278 in (7.1 mm) | |||||||||||||||
Rim diameter | .302 in (7.7 mm) | |||||||||||||||
Rim thickness | .043 in (1.1 mm) | |||||||||||||||
Case length | .615 in (15.6 mm) | |||||||||||||||
Overall length | .910 in (23.1 mm) | |||||||||||||||
Rifling twist | 1:16 | |||||||||||||||
Primer type | Small pistol | |||||||||||||||
Maximum pressure | 25,000 psi (170 MPa) | |||||||||||||||
Maximum CUP | 25,000 CUP | |||||||||||||||
Ballistic performance | ||||||||||||||||
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Test barrel length: 2" Source(s): Guns & Ammo Magazine |
The .25 ACP (Automatic Colt Pistol), also known as the .25 Auto, .25 Automatic, or 6.35×16mmSR) is a semi-rimmed, straight-walled centerfire pistol cartridge introduced by John Browning in 1905 alongside the Fabrique Nationale M1905 pistol.
The cartridge is of semi-rimmed design meaning that the rim protrudes slightly beyond the diameter of the base of the cartridge so the cartridge can headspace on the rim.
Though the .25 ACP was designed for semi-automatic pistols, various .25 ACP revolvers were produced in the early twentieth century by Belgian, French, and German gunmakers such as Adolph Frank and Decker. In the late twentieth century, Bowen Classic Arms produced a custom Smith & Wesson revolver in .25 ACP.
The use of the .25 ACP allows for a very compact lightweight gun, usually pocket pistol. With quality ammo available on the market, the .25 ACP is viewed by some[who?] as a solid choice for personal defense handguns due to its centerfire-case design, which is inherently more reliable than a .22 LR rimfire cartridge.