Hi Keith, I have a pair of scrap barrels here that I'm practicing rib relaying on and there's a surprising amount of movement between the barrels at the muzzle end when the ribs are removed which got me thinking that the repair toward the muzzle that Stan had done could've been made possible that way.
I see your point (no pun intended) about a fine Tig electrode too though. I have read about and seen pics of the sleeving process but ideally it'd be good to see the job being done to understand the work involved, I don't do any work on barrels other than blacking/Browning and raising the odd dent here and there as I'm not qualified or experienced enough to do the technical work but I'm intrigued with the whole business .

Rust never sleeps !