***the AR-15 was first introduced to the armed forces by General Curtis Lemay for use on Air Force base security.***
From what I have read, when Hollywood made the movie SEVEN DAYS IN MAY they wanted a futuristic weapon for the military to be carrying. They chose the M-16.
The super duper 5.56MM round falls between the Remington .222 and Rem .222 mag in power.
I used my Oly Arms M4 to kill a wild hog in southern Ohio a few weeks ago and it did the job quickly and cleanly. I'd never hunted with the M4 before, and I was pretty impressed with it's performance for a rifle that shoots "a good woodchuck round", as I've heard it described...