shtf rifle time. You will NOT shoot a 308 auto NEARLY as well without your ear protection as you do with the ear muffs. A canned 223, however, shoots just as well without ear protection. An effective can on a 308 is so huge and heavy that it ruins the rifle for any sort of fast work. A 10", 3/4 lb can, on a 6 lb, 11.5" barreled CAR 15, just makes it handle like a regular 20" AR. That is to say, SUPER fast at hitting.
TRY 5 "runs" on 2 torsos, at 50m, 5m apart, react, raise the rifle from low ready, put finger inside the guard, disengage the safety, get it on your shoulder, and hit both torsos (12"x 24") and average under 1.5 seconds, for the 5 runs, with your 308 auto and NO ear protection.
Go ahead, I DARE you, and I bet anything you want to bet that you can't do it, the way any good hand can do the same thing with a canned CAR 223.
TRY 5 "runs" on 2 torsos, at 50m, 5m apart, react, raise the rifle from low ready, put finger inside the guard, disengage the safety, get it on your shoulder, and hit both torsos (12"x 24") and average under 1.5 seconds, for the 5 runs, with your 308 auto and NO ear protection.