Maybe in a bolt gun, but I wouldn’t trust a .308 Win in a semi-auto chambered for the 7.62x51.
I use .308/7.62x.51 in a Springfield M1A consistent 3” @100, iron sights. Ammo is surplus So. African, Russian, Spanish and I think Brazil. Filthy, filthy, Filthy! But it shoots great and I am not really trying.
Saw claims of what you could do to this gun and it will still fire so I did a test myself. 4,000 rounds over the course of a year didn’t clean the gun until recently.
No jams, misfires, stovepipes, nothing.
Spent two hours cleaning the gun, it looks new now and I will never leave a gun filthy like that again. Should have taken 15 minutes but I have total confidence in the performance of my rifle.