Thread: Primer issues

Left hand cartridges primer looks cratered which I normally associate with high pressure but it doesn't look flattened on the rim. The right hand one looks to be low pressure with the rim still being nice and round.
Primers are pretty resistant to harsh handling, i have a lee hand loader the one where you hammer the primers in and would have loaded hundreds if not thousands of 3030 with it over 20 or so years and cant recall ever having a mis fire, on the other hand i did spill meths on some primed cases, after drying them out in the hot water cupboard they were loaded and several failed to fire, perhaps some lube or something got on a few?