Another issue could be your ejector pin. If you look down at the bolt face, you'll see a pin inside the recess off the side of the firing pin hole. Is that pin nice, round, and flat? With an empty casing, does it push in and out with a fair degree of effort? Sometimes problems with those can be easy to overlook.
Rednecks... Keeping the woods critter-free since March 2, 1836. (TX Independence Day)
I'm going to use the words "clip" and "Long Colt" every chance I get. It grinds my gears to see new members attacked when we all know dang good and well what's being refered to.