I don't know much about this case. It was an ex-marine and he got the rifle from his daughter. Other than the load used that's all I know.
Man, I swear I don't mean any disrespect, but thats just irresponsible for you to even post a picture. You were insinuating that it was cause of bad pressure testing or manufacturing defect. I bet thats how most took it.
This is what I am talking about. Pumping people full of fear.