page_title: Automatic Colt Pistol
section_title: ACP cartridges
hierarchical_section_title: Automatic Colt Pistol / ACP cartridges
caption_attribution_description: .38 ACP cartridge
context_page_description: Automatic Colt Pistol denotes various John Moses Browning cartridge designs primarily used in Colt and Fabrique Nationale de Herstal semi-automatic pistols. All of these cartridges are straight-sided and appear similar. The .25 ACP, .32 ACP, and .38 ACP are semi-rimmed and headspace on the rim, while the rimless .380 ACP and .45 ACP headspace on the mouth of the case.
context_section_description: .25 ACP (6.35 × 16 mm) – 1905
  .32 ACP (7.65 × 17 mm) – 1899
  .380 ACP (9 x 17 mm) – 1908
  .38 ACP (9 × 23) – 1900; superseded by .38 Super (1928)
  .45 ACP (11.43 × 23) – 1905
caption: Semi-rimmed .38 ACP cartridge
exif: {}