.45-70 cartridge history
Here ya go.
The .45-70 cartridge, also called the .45-70-405 cartridge, was introduced in 1873 by the USA Governments Frankford, Arsenal (Frankford, Pennsylvania ) for use in the single-shot 1873 Springfield trapdoor rifle. The cartridge used a 45 caliber (.458 diameter), 405 grain lead bullet with 70 grains of blackpowder. These were the standard cartridge and rifle issued to US foot soldiers. Later, a .45-70-500 cartridge was available with a 500 grain lead bullet. Also, a less powerful .45-55-405 cartridge which was loaded with 55 grains of blackpowder was used in a carbine or short-barrel version of the Springfield. Another loading called the .45-75 Sharps Straight used 75 grains of blackpowder and was one of many cartridges for the Sharps single-shot rifle. Since the outside dimensions of all these cartridge were the same, they were interchangeable in any of the noted rifles and carbine. The .45-70 was later converted to modern smokeless powder and is still available today as a popular commercial cartridge.
Here ya go.
The .45-70 cartridge, also called the .45-70-405 cartridge, was introduced in 1873 by the USA Governments Frankford, Arsenal (Frankford, Pennsylvania ) for use in the single-shot 1873 Springfield trapdoor rifle. The cartridge used a 45 caliber (.458 diameter), 405 grain lead bullet with 70 grains of blackpowder. These were the standard cartridge and rifle issued to US foot soldiers. Later, a .45-70-500 cartridge was available with a 500 grain lead bullet. Also, a less powerful .45-55-405 cartridge which was loaded with 55 grains of blackpowder was used in a carbine or short-barrel version of the Springfield. Another loading called the .45-75 Sharps Straight used 75 grains of blackpowder and was one of many cartridges for the Sharps single-shot rifle. Since the outside dimensions of all these cartridge were the same, they were interchangeable in any of the noted rifles and carbine. The .45-70 was later converted to modern smokeless powder and is still available today as a popular commercial cartridge.
