The PTG bolt heads are machined to tighter specs. They have fixed cratering conditions for some. But so does bolt bushing. And at much less expense. Also, the PTG bolts heads typically need to be fit. And then headspaced. I didn’t by a rifle & start changing things out. I built my Savage from the start because, well, that’s what I do. I also machined a firing pin striker to fit perfectly. Everything about firearms is hobby to me.
I’m not trying to discourage or encourage. If trying to fix a potential problem, there are more straightforward ways. And if it’s hobby, I don’t have to recommend either way.
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