Not sure what you mean about epoxying - what? Soldering rasies more temp than any epoxy. If you mean locking the bushing in the #1 Action with epoxy - yes, that's what I would do, so it didn't want to loosen with the barrel.
; There are no pins needed. I would not trust pins to be secure enough - ie: tightly fit enough to shoot well.
; Barrels used for BR shooting have only perhaps 20 to 30 pounds torque. They are easily changed with a barrel clamp on the bench, and smacking an action wrench (or padded crescent) with the flat of the hand - all my barrels come off that way - easily, but never loosen one bit during shooting. - Right hand twists tend to tighten barrels.
; The barrel threads and therefore the inner thread of the bushing should be as large as possible, ie: close to the original thread size, but necessarily smaller to allow sufficient thickness of the #1's bushing.
; I thought all this was what you were talking about earlier.