Okay, I'm a nub but I do have some machining experience. I'm transfering out to Pearl Harbor to another submarine and getting a big reenlistment bonus and am trying to figure out how to spend it. I love guns, machining and technical assembly and want to get into gunsmithing but I don't know how big or small to go on the mill and the lathe. i imagine that since I won' be doing a barrel greater than 30 inches that a 36 should be good enough and a mill with 12" of travel should be fine. And by the way I (and probably my wife0 blame this all on you 300sniper.