[["ACP stands for \u201cAutomatic Colt Pistol.\u201d ... The letters \u201cACP\u201d are used to denote various cartridges designed by John Browning for Colt semi-automatic pistols. These straight-sided cartridges are all similar in appearance and include . 25 ACP, . \n", 75.0], ["Automatic Colt Pistol. These were five cartridges deigned by John Browning. These are .25, .32  .380  38, and 45 ACP. ", 43.0]]
what does a. c. p. stand for
abbreviation