Personally, I would never send a rifle back to Savage for something like that. (But then I would never send my rifles, or pistols for that matter, back for anything.) These problems which aren’t really problem according to Savage.

All I know is having the bolt head bushed or using a PTG bolt head, and setting the firing pin striker for maximum pin fall, while having the minimum pin protrusion (.035”), will cure cratering & light primer strikes.