SidecarFlip, you have some good information in there. Johns dies are top shelf for sure. Definitely not the the expert on the matter but some things I have experienced in reloading. Annealing will solve spring back on hard brass. A case that has long head space prior to being fired will make it very difficult to close the bolt.

Drybean, What dimension/relief was out of spec?

zilla, To test the primary extraction you need a feeler gauge set. Otherwise you might try to anneal your brass. Sidecar is correct that the brass may be getting hard. If you are not experiencing a hard to close bolt, your case head space is probably not too long. Following sidecars advice and size for the .002-.003 clearance at the shoulder is always a good practice. Lots of tools to check that dimension.