Update on this, for anyone curious.

My buddy didn't want to spend more money at a gunsmith. And I sold my action wrench and barrel vise several years ago, so we couldn't take the barrel off to clean up the threads. Nobody close with tools that we could borrow either. The hope was that we could clean things up a bit, and put it all back together.

I didn't have an 8-40 tap, and was planning to modify it anyway, so I got one from Amazon. I ordered a plug tap, and ground the tip down shorter in stages. Basically run the tap, then shorten to get full depth threads at the bottom of the blind hole.

I think it cleaned up pretty good, but the hole was butchered by the gunsmith with a lot less thread engagement between the fastener threads and receiver threads. Basically the minor diameter in the receiver hole was oversized. The 8-40 hole also seemed way off center, but I don't know if the gunsmith did that or if it came that way from the factory.

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]







Last edited by 4th_point; 08/16/20.