Originally Posted by
zimmer
Unfortunately the damage to your bolt face, now that the cause is known, and you have ceased using that cause and it won't get worse, is more a cosmetic issue. Still a mighty piss off though. Would gall me considerably.
I have seen heaps of bolt faces like that and worse. Mostly rifles owned by NRA shooters who, in most cases seemed unaware or unconcerned.
In recent years there have also been the issues with Winchester LR primers leaking badly.
Real bad cases end up with debris going down the firing pin hole. Yours shouldn't have got to that stage.
Run it past your gun smith when you visit him.