I don’t know him personally, however, this seems like a great write up to review and take something from. A couple tid bits I took from it were the pre drilling and boring bar methods he used along with the flat crown. Hope this helps someone out.
Jackie chambering a Barrel (Pictures)
Note: he is a high level benchrest type, not just another gun plumber like me
Jackie chambering a Barrel (Pictures)
Note: he is a high level benchrest type, not just another gun plumber like me