Quote Originally Posted by earl39 View Post
I know this horse has been beat to death but check your primary extraction. It might be right on the edge of not enough and once things get warmed up you don't have enough to get the brass to start moving as you open the bolt.

I understand what you are saying. not sure how to check it properly though.
When I did remove a case prior to this, I did check the extractor to make sure I didn't break it.
Do I "inspect it" with a magnifying glass? for wear marks?