I read into the info on line. It didn't seem to cause me any problems. Shelve life on primers, has been a problem for me. The other if that was tried, it would work very good. The police and all the other would have the same thing. So wondering if that firearm is going to fire won't work for them or others and armed forces either. If they go boom it works. Worry, Worry if that makes you happy. I just want primers.