What is the deal with a metal cannonball exploding? Is it just movie BS effects or was there really powder inside and some sort of fuse or something? If it's real how
Bomb experts to look at cannonballs discovered at Port Fairy - ABC News
Explosive Find: Excavated Bomb Suggests Early Start for Artillery - DER SPIEGEL
Cannon Experiment (U.S. National Park Service)
Bomb squad detonates live Civil War cannonball found in Maryland
Civil War cannonball discovered in Maryland disposed by bomb squad - ABC News
Do cannonballs explode or do they just hit with great impact? - Quora