The American Civil War made many these types of weapons, ranging from so-named “volley” guns that sprayed several rifle bullets suddenly just like a shotgun, to multishot, semi-automatic weapons like the Agar machine gun, which was nicknamed the “coffee grinder” to the way it fed its ammunition. Best recognised was https://machguns.com/product/lot-1448-dlo-1919a4-browning-class-iii-nfa-fully-transferable/