Just out of interest, what are the laws in the UK and US (for comparison) surrounding the ownership and use of active muzzle loading cannons?
The US federal government does not regulate smoothbore, muzzle-loading, black power cannon. I'm not aware of any states that regulate them, though I do not claim authority n the subject. Arkansas has no regulation.
Exploding shells (which were quite common in the period) are almost certainly regulated as explosive devices by the federal and state governments.
