Accuracy fixed.

[Klem]

I did mine verticle but basically just like this with a couple paper towels.

https://youtu.be/Wgw6MhO83Fg

Put the barrel in verticle, cleaned the dripping stuff and put on the barrel nut to hold in place for 24 hours.

OK thanks for that...I see after carefully lapping the face it now has Loktite on it. The paper towels in the video were only used to catch the excess and clean the threads, but not the face of the receiver.

The guy smears the Loktite on the outside of the barrel extension, so the excess gets pushed to the front of the receiver as the two parts come together. There has to be a thin film of glue now between the face and the shoulder of the barrel extension.

What if the Loktite was applied to the inside of the receiver only? The excess then gets pushed into the receiver and not on critical surface of the shoulder. Harder to clean the excess because you've got to get into the receiver but at least there's less chance it ends up on the carefully lapped receiver face.