Do you really want to take a chance on de-capping a live primer. Personally myself I don't think so. If you don't think a primer is a big thing just pitch one in your burning barrel and see what happens when it goes off. 0 By the Way if you do stand way back. I would not I would not suggest you pitch one in a burning barrel. Please take my word for it. A primer has quite a bit of explosive power seen a friend of mine try to save some primers a few years ago. When the primer went off let me tell you it came flying out of the press and hit a wall pretty good a few feet away. Just pitch the casings. Remember it is always better to play it safe.