I have a spanish Oviedo mauser. The barrel is in poor shape. Will a small-thread (.980 X 12 tpi?)turk barrel fit this action? Is it likely to headspace close enough to be able to fireform without having to have it re-headspaced? I.e., set back, and rechambered? It would sure be a quick & easy fix, if all I have to do is switch barrels. First-hand experience appreciated, but I'll take opinions, too! Thanks.