<Tr> <Td> 300 gr (19 g) JSP + P, Cor - BOn </Td> <Td> 1,300 ft / s (400 m / s) </Td> <Td_colspan="2"> 1,126 ft ⋅ lbf (1,527 J) </Td> </Tr> <Tr> <Td> 360 gr (23 g) Nosler JHP + P, Double Tap </Td> <Td> 1,200 ft / s (370 m / s) </Td> <Td_colspan="2"> 1,151 ft ⋅ lbf (1,561 J) </Td> </Tr> <P> The . 45 Colt, which is sometimes mistakenly called . 45 Long Colt (. 45 LC) (11.43 × 33mmR) cartridge, is a handgun cartridge dating to 1872 . It is a black - powder revolver round developed for the Colt Single Action Army revolver . This cartridge was adopted by the U.S. Army in 1873 and served as an official US military handgun cartridge for 14 years . While it is sometimes referred to as . 45 Long Colt or . 45 LC, to differentiate it from the very popular and ubiquitous . 45 ACP, and historically, the shorter . 45 S&W Schofield, it was only an unofficial designation by Army quartermasters . Current catalog listings of compatible handguns list the caliber as . 45 LC and . 45 Colt . Both the Schofield and the . 45 Colt were used by the Army at the same period of time prior to the adoption of the M1887 Govt . </P> <P> The . 45 Colt was a joint development between Colt's Patent Firearms Manufacturing Company, of Hartford, Connecticut, and the Union Metallic Cartridge Company of Bridgeport, Conn . Colt began work on the revolver in 1871, and submitted a sample to the U.S. Army in late 1872 . The revolver was accepted for purchase in 1873 . </P>

Is 45 colt the same as long colt