Had a check ring on the screw fail and when I went to pull the screw out of the barrel it was pulling smooth right until the check ring got within 2 inches of the feed throat. I have been trying for 8 hours to free this darn thing but can't get it to budge. Any suggestions?

PS I did have the barrel hot and had purged all the plastic out. Even with the barrel cooled off I can rotate the screw by hand and wiggle it back and forth with normal check ring movement. The check ring is just stuck/wedged.


Any help is very appreciated.

Thank you