Not sure if this is the right forum for this, and I've read varying posts about flat primers related to over pressure, but...
I've been loading what I think are light loads for my 223 Wylde (Berry's 55 gr FMJBT on top of 24 gr H335, CCI 400's). I've been averaging 2850fps, but I have flattened primers. Not horribly flattened, but definitely not rounded. Question is, are the loads too light to form the brass, causing the primers to take the brunt of the pressure? Or do I have loose primer pockets (mixed brass that's been trimmed and swagged). Or something else???
I don't think that I have anything close to over pressure, but I figured I would get a second (or 20) opinion.