.45-70

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The .45-70 rifle cartridge, also known as .45-70 Government, was developed at the U.S. Army's Springfield Armory for use in the Springfield Model 1873. It is known to collectors (but never to the Army) as the "Trapdoor Springfield." The new cartridge was a replacement for the stop-gap .50-70 Government cartridge which had been adopted in 1866, one year after the end of the American Civil War. The new cartridge was completely identified as the .45-70-405, but was also commonly called the ".45 Government" cartridge in commercial catalogs.