Quote Originally Posted by GaCop View Post
Swapped out for a different receiver and chambering is working fine. I have yet to figure out what is wrong with the original action. I reset head space less tight and that helped a bit but chambering was then hit or miss, one minute the brass would chamber but then would not extract, then all of a suden it was back to the old "won't close on a chambered round"?! It's enough to drive an old man to drink (my excuse).
Are you sure that there isn't a burr in the chamber? I would inspect the brass to see if there are any deformities in on the case itself, or have the chamber inspected by a gunsmith to ensure that the chamber has been cut correctly.