I seen a video where a guy was threading the shank of rifle barrels in a different way.
Using a 60 degree tool bit mounted upside down in the tool holder and the compound set 30 degrees to feed from the barrels shoulder towards the breech end and running the rotation in reverse.
Threading this way you don't need to watch closely to disengage the feed when you get to the shoulder. You start at the shoulder dail in your depth of cut and start threading away from the shoulder and you can relax and let the tool run off the end of the shank before disengaging the feed. Looked like it worked well in the video and I can see the advantages of using this method.
I haven't tried it yet but sometime when I get the time to play I plan on trying it on a scrap piece and get the feel for it.
What do you all think ?
Jedman