Cz-52 rifle conversion to 7.62x39?

[browningautorifle]

But if you seal it in with glue

I guess that's what it works out to. I also roughed both up a bit I think. Heat didn't seem to affect it and I know there's some thread lockers/loctite that is practically indestructible. I think the magic was when I headspaced and reamed it to correct spec.