Quote Originally Posted by Zero333 View Post
I've swapped bolt heads from different short actions and headspace was still good within spec. Headspace will not be affected enough (or any) to matter when you flip the head.
I wouldn't be advising anyone to ever do this. Have you ever measured the differences between the bolt face and rear of bolt locking lugs? Or trued the receiver lug abutments? Just because it works in one rifle and another does not mean that every rifle can just have bolt heads swapped without consequence. This is shady and shoddy advice at best.