I call it the 6.5 Crushmoor. Having a few chambering issues with it, but Im sure once its done, it will fire out of some sort of firearm... (on the left)
Is it possible to fix cases once this happens, or do you have to throw them out? seems like fire forming it in your chamber using a wax seal instead of a bullet might be a good idea.
depending on what type of sizing die you have, you can remove the decapping assembly and neck bushings and push the case shoulder somewhat back into shape