awww yeah rightio, so it wont really be that fit an finish, even if thread is same, the shank an diameter possibly all different?!
I was just thinking, why couldn't I say buy a 2nd hand "Winchester" barrel an fit it onto a ?"Remington" (for conversation sake)
by the sounds its obviously got to be within the family, Remington barrel for a Remington, without having too much machining an 'carry on' involved..
Cheers!
WL