It sounds like the ammo is a little too hot. Somewhere in your brass you will find shells without the primer dimple - just a hole in the primer. Hot loads are indicated by flattened primers, hotter by a ridge around the primer dimple, and way too hot by a blown out primer dimple.
I would try to get GA to refund some money. Find a piece of brass with the missing primer dimple and send them a picture. I personally would stop firing the weapon with those loads. You're just short of Kaboom!
I would try to get GA to refund some money. Find a piece of brass with the missing primer dimple and send them a picture. I personally would stop firing the weapon with those loads. You're just short of Kaboom!