I see this thread going down like this: You asked a very specific question. M1s and M14s are not anything like an AR-based .308 Win rifle. You got that answer. You're comparing Apples to Hammers, basically. You want to compare a 2-lug bolt locking system - sometimes, a 1-lug locking system - to an 8-lug locking system, over two different platforms.
It appears that you didn't like the answers you got, except from ss.
The last quoted comment here really says it all, in terms of just reading through the thread here - if you have thin skin, you will be disappointed.
Brace yourself.