Thread: Pierced ginex primers

If the primer's anvil inside the cup is a little soft or the primer is not fully sensitized or seated home the firing pin can stretch the cup past what it likes and that can cause a pierced primer. It's quite hard to really define what happened in the sequence of events that lead up to a pierced primer event without knowing what they all are. May or may not be related to the load details or reloading process.

Originally Posted by zeropak

Seems a little odd. Those are not hot loads. I know the Ginex primers are taller than some other makes. I have some Ginex here and will give them a go next range day. I wonder if the primers sitting proud of the case could be causing the issue you are having, it doesn't look like from the images.

Primers were not protruding. Seated pretty much to normal height compared to CCI and Federal primer loads that were on hand.

Originally Posted by Micky Duck

so the PSD case..thats milserp (so smaller cpacity)which you already know...24.5grns AR2206h behind a 50-55grn pill has been my go to load for years....your projectile is a shit load heavier than that so if its not a hot load persay its definately getting warm. I see slight primer flow around pin in both first and second photo...might be contributing factor..might not too.

PSD cases basically hold same water volume as FC cases which are also ex-military. Those three cases were a load of 24.6gr Varget under 73gr ELDM giving an av. velocity of 2804 fps, ES of 11, SD of 6 (Pro Chrony) and a .91 moa group. So I may investigate this load further with CCI or Fed primers and differant seating depths, or not. The 24.3gr load didn't give such good velocity figures but was a tighter group so may go that way, I don't get too wound up about ES and SD.