Seems to me, the big problem with re-boring, is holding the old barrel contour properly, for boring, reaming and button rifling. If cut rifled, I still don't know if there is a problem with the re-bore and ream - but, have heard or read this is the problem.

A long time back, like in the 80's, I inquired about having a rifle barrel re-bored here in Canada - in Alberta was the barrel maker - I do not remember the name. I was quoted a price for my Chrom-moly barrel at $50.00 over a contoured, chambered and threaded, match-grade Stainless barrel from Shilen. I went with the new barrel form Shilen. This was before I knew about Pac-Nor. Their barrels are incredible shooters.