The 44/40 is just about the same as the 45 colt ,just necked down to 429 cal,but with the thin neck seals better when shot!
The 45 colt has a hard brass case that doesn;t form to the chamber,and you get dirty gas blow back that just gets AR/15 dirty!
I like a 92 in 45colt (and the 255 grain to 300 bufaloe bore)make the 45 colt harder hitting with effort!
The 30/30 Win is the standard all others have had to reach up to,
and is the king of the hill!
Bob