The Model 1873 Trapdoor Springfield was the first ever standard issued Breech-loading rifle for the United States Army. US Army Seal HHC, US Army Distinctive Unit Insignia The Army is the branch of the United States armed forces that has primary responsibility for land-based military operations. ...

45 calibre (45/100 of an inch) with 70 grains of black powder inside the metallic cartridge the 45-70 was an extremely powerful and effective weapon. Black powder - here a 100 grams container - can be freely bought in Switzerland. ...

The rifle was originally issued with a copper cartridge and taken off to fight the American Indians in the American West during the second half of the 1800s, but the copper, the soldiers soon discovered expanded in the breech when heated upon firing and jammed the rifle. With repeated firings this jamming made the rifle useless in combat except as a club.

After General George Armstrong Custer's defeat at the Battle of Little Big Horn the rifle cartridges were redesigned with brass instead of copper which did not expand as greatly. This was a major improvement. George Armstrong Custer George Armstrong Custer (December 5, 1839–June 25, 1876) was an United States Army cavalry commander in the American Civil War and the Indian Wars. ... The Battle of the Little Bighorn, also called Custers Last Stand, was an engagement between a Lakota-Cheyenne combined force and the 7th Cavalry of the United States Army that took place on June 25, 1876 near the Little Bighorn River in the eastern Montana Territory. ...

The slug used for the 45-70 was a 505 grain lead slug. This slug could be propelled by the 70 grains of black powder up to 1000 yards accurately hitting targets that were around 6 feet tall by 30 feet wide at some ranges. The men of the Army after Little Big Horn were required to take target practice twice a week on target ranges and became so proficient that many of them won awards that were offered by the armed forces for their rifleman ship. The Battle of the Little Bighorn, also called Custers Last Stand, was an engagement between a Lakota-Cheyenne combined force and the 7th Cavalry of the United States Army that took place on June 25, 1876 near the Little Bighorn River in the eastern Montana Territory. ...

If a soldier could hit a target 8/10 times at 600 yards they would receive the Marksmanship Award, but if a soldier could hit the same target at 1000 yards 8/10 times they would receive the Sharpshooter Award. Many of the men were marksman, but very few of the men were sharpshooters and a great deal of respect was given to those that could achieve that task.