I had a question come up on another forum that got me to wondering.
In regards to smoothbore cannons and mortars, what are we allowed to shoot out of them? I mean besides lead or zinc balls, golf balls and concrete filled aluminum cans.
This person was wanting to know if it was legal to shoot flash-bang loads removed from 12 gauge shells (the removal which I am certain is dangerous).
What about grapeshot (probably would make the cannon a sawed-off shotgun)?
I intend to stick to lead balls but I am curious.