If I am holding the barrel blank in my 3 or 4 jaw, I have excess material at the breech.? I wouldlet my tool touch the blank at the muzzle end and back the cross slice out 3.57 mm 3.55 or 3.6 easy marks on the handwheel.? Swing the headstock so the tool touches the muzzle end of the cannon blank and lock the headstock you should have your taper dialed in
Ed Samsen
