ApacheCoTodd
member
"... several thousand rounds..."
and a gun you like shooting it in?
I'd think about making it a"project gun" and get a barrel "liner" from Brownells then chamber to short only. One can always re-ream to LR later.
Short answer though (NPI) would be drill & ream the chamber then sweat in a new chamber blank and ream to Short. There'll still be un-rifled bore from rim to lands but not the over-bored gap you currently have.
Todd.
and a gun you like shooting it in?
I'd think about making it a"project gun" and get a barrel "liner" from Brownells then chamber to short only. One can always re-ream to LR later.
Short answer though (NPI) would be drill & ream the chamber then sweat in a new chamber blank and ream to Short. There'll still be un-rifled bore from rim to lands but not the over-bored gap you currently have.
Todd.