07-15-2020, 02:06 PM
Thanks again guys for the info on bedding. My barrel extension actually fits pretty snug in the upper. Takes a little persuasion to get it out and push it back in again. So think the clearance is tight enough that if the two aren't darned perfectly aligned with one another, it binds. I think I can forget the gluing idea, which I'm relieved about. One less thing to fool with.
For the lapping, I'll just give it some quick, minor polishing to start with to see if it reveals bright metal all the way around. If so, there won't be much of a need to go further.
Back to the other thing. Just for fun, I dragged out my little Teslong camera because I noticed something strange looking inside the extension. And odd series of scuff marks in the lower half. Mostly lower half. The sections/segments of scuffed surface run from about 2 o'clock to about 8 o'clock. Coincidence you think... something done while the barrel was being built? The marks do roughly match up with the scuffed lug faces. I don't even know if it's possible for the bolt face to reach that far into the extension. Maybe if the two planes weren't in parallel and the bolt had been dropped on an empty chamber? But I never do that. Always believed that was a big no-no.
[ATTACH=CONFIG]16458[/ATTACH]
[ATTACH=CONFIG]16459[/ATTACH]
For the lapping, I'll just give it some quick, minor polishing to start with to see if it reveals bright metal all the way around. If so, there won't be much of a need to go further.
Back to the other thing. Just for fun, I dragged out my little Teslong camera because I noticed something strange looking inside the extension. And odd series of scuff marks in the lower half. Mostly lower half. The sections/segments of scuffed surface run from about 2 o'clock to about 8 o'clock. Coincidence you think... something done while the barrel was being built? The marks do roughly match up with the scuffed lug faces. I don't even know if it's possible for the bolt face to reach that far into the extension. Maybe if the two planes weren't in parallel and the bolt had been dropped on an empty chamber? But I never do that. Always believed that was a big no-no.
[ATTACH=CONFIG]16458[/ATTACH]
[ATTACH=CONFIG]16459[/ATTACH]