I saw on the history channel where they had a new weapon where they stack 10 powder/bullet combos inna barrel and fire them individually starting with the outtermost bullet and then the next etc, etc.
What they don't know is that I tried the same thing in my Buck Buster (rifle) years ago. Only problem was that I started with the innermost bullet and shoved em all out at the same time.
Hurt a bit too.
C F