All or most of the information given is very good, but there is another way to look at it. The M1 .30 Carbine was supposed to replace the .45acp handgun in WWII, but it never did. I have always thought of the .30 Carbine as being a handgun load in a small rifle, sort of like shooting .357 mag in a levergun. The .30 Carbine should not be viewed as a deer rifle, although I am sure it has taken deer, but rather a general purpose personal defense, plinking and varmint gun. Lots of fun on coyotes, especially with a 30 rnd. mag.
All it takes for tyranny to succeed is for good men to do nothing.