I can do the basics on a lathe. I have turned a barrel, crowned, chambered etc the only thing I didnt learn was threading and it basically does itself you just know how to set it up change the gears etc.
Threading is very simple really. If you can turn a barrel you can cut a thread. Start with a thread that has a pitch corresponding to your lead screw and you can engage or disengage the thread feed on any mark on your threading gauge.
Take small cuts and work the threads deeper and deeper until you have the desired contact. Start with scrap and just get the feel for it. Its almost magical watching it work. I am no machinist, but I took classes all through high school and in my mid 40s now all my buddies ask me for parts fabricated and repaired.
