For those who may be interested, and those who asked , I know of two pan chargers blowing up. One was next to the shooter on the bench...fine powder dust is presumed to be the culprit. Damage was dramatic, but luckily not severe enough to cause permanent injury. The 2nd instance was related by our own Dennis Glazener , a couple years back. Parts of a hand where damaged. I still have one of these chargers which I use occasionally, but I drilled a hole in it and plugged it with leather. No potential bullet if the worst happens. I prefer and now use a small primer with a plug. The plug is attached with a thin cord or length of sinew so it won't get lost. In my experience , the spring loaded nozzles tend to clog, leak powder, or accumulate powder around the tips. Seeing these things hanging around shooter's necks gives me the willies .