Re: Contouring a barrel
The barrel may warp after turning.
I have seen, on line, the barrel straightener at Savage.
Out of warpage fear, I have never turned down a barrel.
I did buy one on Ebay for $33 that was supposed to be a Douglas 22LR that someone turned down by making a cut that was rough as a cob.
It shoots sub moa as a 223.
I think Douglas barrels are stress relieved.