Never heard of any bolt probs but there are warnings about the differeces between the 7.62nato and .308Win. ...and I've yet to see or hear of an actual prob in those regards either.
Never-the-less , I have a nice stash of 7.62nato ammo and only shoot at targets with it anyway.
Just try not to use any heavy duty ammo for moose
Oh yeah...it's a pleasure to shoot !