grayfox
One other thing I do past what you noted at the start is to put a snug fitting plastic
shim between the barrel and the hanger.

That plus the steps you have taken have worked for me.
If I needed to do more it would be to free up the rib as noted above.

It has been a while since the original post. Any thing to report??????


"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".