also 9 mm caliber Table of handgun and rifle cartridges Notes Sources Official U.S. Army description of the original Army Model 1892 revolver, including its .38 Long Colt ammunition. Revised U.S. Army description of the M1892 series of revolvers and their .38 Long Colt ammunition. (Note this description has an updated cartridge and higher muzzle velocity, but the other ballistics and trajectory data values are unchanged from the 1893 description and must be considered as only approximate for the newer revolvers and cartridges.) References External links Ballistics By The Inch .38 Long Colt Results. 38 Long Colt Colt cartridges