I'd take a look at your gas/recoil buffer setup and maybe the ejector spring tension. I don't get any case denting with my bear creek side charging upper shooting g 6.5 Grendel. But it has a jp bolt in it....
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.