Sorry to those who have seen this question 1000X already but....

Lets say I had a 22-250 and instead of re-barrelling when that one shoots out, is it possible to get the PTG bolt head and re-barrel to .243?

I see they are the same size .473" but the note on the bottom of the thread says NOTE: Just because it will fit doesn't mean it will feed, extract, or eject properly

I know the head space will need correcting but was wondering if there are any other bits that will be needed?