Cleaned Custer’s Clock.
Bourke (ON THE BORDER WITH CROOK) mentions when the Sioux got hold of tube magazine rifles they became rather “surly” since the Army had single shot Springfield rifles in which the copper cases had a tendency to stick in the chamber.
Oh yeah, it’s deadly out to about 150yds. Maybe 100.
Even when full packed with black powder the muzzle velocity was 1800fps for a 200gr .44 bullet with a .16 ballistic coefficient. It slows down fast.
Modern smokeless versions are down around 1200fps.
Pekid for a rifle round.