WildRose
Well-Known Member
Well when I was young and stupid I pushed my loads well beyond safe pressures regularly trying to get the most out of them so mine would often start to bulge by the fourth or fifth loading.I know exactly what you mean. This normally happens when you have a die that doesn't match up well with your chamber. In other words you have to bump the shoulder to much to get the base sized enough for easy chambering resulting in poor case life due to seperations. Bumping the shoulder the proper .002-.003 then results in the base not being sized enough. There are a few ways around this, the Larry Willis die is one. I size for 5 belted mags and have only needed this die once. My belted case normally bite the dust due to loose primer pockets more than anything else, never due to seperations. JME
Rarely did I push them any further than that but when I did the cases would get marked with a Red X and disposed of after the next firing.
I did run some till the primer pockets got so loose the only way I could prime them again was using superglue or clear nail polish as an adhesive and they too got the Red X.