Any machinist worth his salt could accomplish this. The stance that it takes an 11th degree, super Don Gun “Smiff” to do anything is yester-year’s way of thinking.

I was wondering this also though, is this to save a buck? Something special about the barrel? Used 243 barrels should be easy to find. Hell, I have the original barrel away free, right here. And it was a 243. I’m sure you can find one if you look.