Quote Originally Posted by MegademiC View Post
You could just be covering up the symptoms of a bad extractor.
Have you replaced it?
No, I've not replaced the extractor. I keep thinking that something is either moving too fast or too slow and sometimes forcing the new round out of the magazine at some odd angle and ramming it in canted. The big scratch marks indicate it has come into contact with possibly the feed ramps in a bad way - fast, slow?