I recall a couple of reloading related stories regarding perported blow-ups; one of a guy who was new to reloading that used a charge bar minus the powder bushing .. with a bad result and another of a fellow who used Bullseye because he had been told it was usable in reloading shotshells; it is, for some target loads in the 12 ga. w/light shot charges. The gent in the story was using it for some heavy waterfowl loads in an amount way past stupid. I have no idea if those tales were true or not, but they both went around quite a bit some years ago.