This is a Replica of the little boy atomic bomb
When manufacturing cannons, the ethics about taking someone’s life, taking someone away from their family, and causing severe damage to land and homes come into place. Cannons can also be very powerful. (Such as the ones with explosive cannonballs) These can kill another human which is already something immoral itself, but what about their family? They will also be affected by the loss.
Killing a Human being is not like killing an insignificant fly. It is not as if they can just be disposed of so easily.In conclusion, any killing of other people in any way is immoral, especially if you don’t know the person.