Well I think I figured it out. Took the barrel off and shined a flashlight down in the chamber. The shoulder is very rough and is a mirror image of what I am seeing in my brass. Don't know how often this happens, but I figure if it's going to, it will happen to me. Just glad I didn't get a face full of hot gas. I will be contacting Shilen and Northland tomorrow to see how they will handle it.


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