Separated and deprimed 265 cases from Sunday outdoor shooting in western PA. Although I was on a farm, I didn’t try for the broad side of the barn. But, we did drag a pallet from the barn and put up a sticky target on it. I COULD hit the broad side of the pallet. Ended up shooting 100 rds .380 ACP, 100 rds 9mm, 20 rds 5.56 NATO factory loads, and 70 rds .300 AAC Blackout. Lost about 15 cases in the tall grass. Shot some Aguila 150gr .300 AAC Blackout. Second round sounded and recoiled funny. I could swear I heard something rattle loose in my lower. For sure...the empty was missing the primer. The anvil was rattling around in the upper, and I found the primer cup loose in the lower in front of the trigger group.