I intend to anneal the survivors, it just seemed excessive. MD I did not contact Hornady as this stuff came from different lots over time.

I was beginning to wonder if maybe the gun (Mossberg MVP) might have a out of spec chamber, but I would find that hard to believe as well as it shoots.

They say everything happens for a reason.
For me that reason is usually because I've made some bad decisions that I need to pay for.