I’m waiting for my form 1’s to get approved, and my mind is in high gear, so I am threading barrels while I wait. It gives me something to do to stay satisfied while the atf does their thing. I have an old sheldon lathe from 1939/40. I made a couple of spiders for it so I can do barrel work. The aluminum screw tips marred the finish on my rimfire barrel, so I had to touch up the bluing. I can live with it. I’ll use some shims or something on the rest to prevent it. I used a sig taper because the barrel wasn’t fat enough for a square shoulder. I like the sig taper better anyway. Funny story: When I got this rifle about 15 years ago, the crown was not great. I put it in my wood lathe and recut the crown my hand (didn’t have a metal lathe yet). It turned out really nice and shot great. I touched up the crown when threading just to be safe. The hand cut crown was only off by .0005”!
I don't have the skills nor access to equipment to do this sort of thing. I have sent a couple barreled actions out to Oregon in the past for the service. My boss has a buddy that is capable, but he's getting pretty flaky anymore. Apparently he has built some very accurate rifles for those who have the means to commission him. I had the shop in Oregon thread to Silencerco's specs for 'oring engagement'. (has a little nipple on the end that butts up to oring for air tight seal at muzle). I think that sort of thing has kindof gone away.
I like the o-ring idea. I was heating some brain cells a while back trying to figure out how to seal the threads and thought of maybe putting a taper up by the crown to help lock/align/seal the threads. I started googling and sure enough someone (rearden) already did it, only bigger. I machined a piece of DOM tube to see how it would look on a barrel and it’s not too bad. Have to fine tune a few things and then might try it on my 22-250. Being able to easily machine the matching suppressor mount is the kicker, because it is inside instead of outside.
