I wanted a quick, universal way to hold the various tapers. I wasn't sure how it was going to work out, but it has been great so far. No issues parting off or slipping. I put brass shims against the barrel and snug the chuck until the heels of the jaws touch. Then I put an indicator on the od of the barrel and alternately snug the setscrews at the nose of the jaws until it's running true, then firmly tighten the chuck. From there I can use the TBAS to finish dialing in the muzzle like normal.
