My Dad carried an M1 carbine in WWII. He loved it, but he was B-24 crew chief and also flew flight engineer on various occasions. He trained with an 03 Springfield which he loved. In Hawaii he was issued a Thompson, which he hated. He disliked the Thompson because it was heavy bulky and he had to carry two drum magazines. He said it was always in the way when working around the aircraft, and the two spare drums were heavy and clumsy. Most of all he said it was not accurate and difficult to shoot well. My Dad is all about accuarcy and not wasting ammo thats why he loved is Springfield ( too this day he gets aggravated if you can't hit your target on the first shot). He loved the carbine because it was light easy to carry and did not snag on everything around the airplane. He never had to fire in combat, but he said he was confident he could hit an enemy soldier with it. He always told me it wouldn't be very good for hunting deer, and Dad is a first class deer hunter.
G