As for needing someone to thread the barrel; I don't see the point?
If you have a threaded barrel already - buy a thread protector (nut) and have a dealer pin it for you - done!
if you have a non-threaded barrel already - you're good to go!
For some reason if you needed to have that non-threaded barrel cut / threaded - Mike at Tier One does excellent work BUT remember if it's a chrome lined barrel and you cut it, the chrome will eventually peel - they always do.
Best of Luck!
So I thinking of adding another hobby to the to many I have already , looking at casting my own 9mm 45 and 357 bullets, for those of you who also do , do you buy your lead or do you try to get it from tire places I see some people sift the back stops at there local ranges and reclaim the lead anyone do any of these. John