
Originally Posted by
Rubicon Prec.
Lots of words. If f you’re videoing something, do what I mentioned above without edit. Set up, chamber, time your barrel how you choose. Mark the muzzle TDC while in the lathe. Remove the barrel, toss some stock in the lathe, face, bore and ID thread it to match your barrel. While it’s still in the chuck, thread your barrel into it, place a DTI on the muzzle, spin the chuck and prove that your TDC mark is still TDC. It is repeatable, right?
Can you set up your barrel, chamber, document the muzzle runout, throat runout and breech end runout, then remove the barrel from the lathe, and duplicate ALL the previous numbers? I’m not saying it won’t happen, but I’m not going to make that claim.