A cannon is simply a metal tube that has a closed conclusion and an open end. The shut finish has a small fuse gap. To load the cannon, you pour in gunpowder — a mix of charcoal, sulfur and potassium nitrate — after which you can fall in a cannonball.A U.S. Navy seven.62 mm GAU-17/A Minigun Expertise With all the MG forty two led into the US i