Samattia

Yes, Dillon Tech replaced the primer seating device and also helped me adjust the shell plate. It seats the primer properly now. Thanks for following up.

Oven.

Oven, why?

I will call them tomorrow. I agree. The face of the primer looks deformed. Something is off with the primer operation. Thx.

Yes I wet clean my brass. I do dry it well though.

It is a brand new Shadow 2 that just came from Cajun Gun Works.

I believe, this recession in the middle of the primer, damaged its core material.

The center of the primer is dented inwards. That renders all rounds disfunctional.

Thank you guys for your input. Here are some pics to better explain the problem. All these rounds mostly won’t function.

The primer pusher on my RL 550C leaves a shallow dents on small pistol federal primers. Usually I will have one or two maximum light strikes while shooting, but today, I was getting so many light strikes that I quit the USPSA match. I usually clean the primer seating cup. After careful inspection, I noticed most primers were concave. Did anyone experience this before? How to fix it?