I have a 6br with a bat sv action and 1100 rounds through it and was going to send it off and have the barrel set back. I have a brand new barrel also and the smith said that he could set back on the existing barrel and if i sent him the new that he could thread,chamber and set the headspace on it and i would just be able to screw it on when needed. Will i have to buy a barrel vice to do this or is there some other way? And will this even work?