hey guys. im building a single shot rifle in 221 fireball and im building the entire action from scratch. its a frank de haas chicopee design if anyone is familiar. what I need help with is theading and chambering my hart barrel blank. im just not familiar with the operation of indicating in the bore and dont have the proper tooling. I know this process can make or break the accuracy of my little rifle. I can provide detailed drawings of the threading details. its very simple, just not the usual rem 700 barrel... actually much simpler!! any recomendations would be very much appreciated!!