Having read a few posts here in the past and in fact having made one myself regarding reboring of rifle barrels, I thought the following reference might be of value to some of the readers. The info is contained in an article entitled "More Barrel Stuff" from the Jan. '03 issue of (Rifle) magazine on page 80 and consists of no less than 7 sources for having rifle barrels rebored. One I recognized from a previous reference in response to my own post from GB.
