Carbine worked fine in the European theater, especially when it got down to house to house fighting. It was more of a mid range weapon, If the enemy was 100’ feet in front of you in a jungle or on the second floor or across the street from you, it served it’s purpose. It wasn’t meant to hunt Grizzlies. (maybe with a 30 round mag?)
You are well armed, power and accuracy-wise, out to 200 yards with an M1 carbine. Highpower CMP matches routinely shot them for score at 200.
Audie Murphy seemed to do ok with it.