Detroit Ammunition Subsonic 380 AUTO 100 Gr Round Nose 50rds

No surplus powders or primers are used to build our .380 AUTO-100gr RNFP NAS3 ammunition. The powders that are used are often better than those of many OEM manufacturers, producing the best subsonic .380 AUTO-100gr RNFP NAS3 round available!The .380 ACP (9A-17mm) (Automatic Colt Pistol) is a rimless, straight-walled pistol cartridge developed by firearms designer John Moses Browning. The cartridge headspaces on the mouth of the case. It was introduced in 1908 by Colt, for use in its new Colt Model 1908 pocket hammerless semi-automatic, and has been a popular self-defense cartridge ever since, seeing wide use in numerous handguns (typically smaller weapons). Other names for .380 ACP include .380 Auto, 9A-17mm, 9mm Browning, 9mm Corto, 9mm Kurz, 9mm Short, and 9mm Browning Court (which is the C.I.P. designation). It should not be confused with .38 ACP. The .380 ACP cartridge is also somewhat of a misnomer, as it does not strictly conform to normal cartridge naming conventions that are named after the diameter of the bullet. By standard naming conventions, the .380 ACP should be called a .355 ACP, as the bullet in the cartridge is .355 inches in diameter.