John Popp and NRA Museums Director Jim Supica begin a new series of Curator's Corner from the NRA National Sporting Arms Museum at the Bass Pro headquarters in Springfield, Missouri. First up is what could be considered to be the world's first machine gun. It's a late sixteenth century wheellock that fires sixteen rounds without reloading, all with a single pull of the trigger! Each oval lead bullet has a hole that is filled with gunpowder-like fusing material. The first round is ignited by a wheellock. Its powder ignites the fusing of the second round, continuing in succession until all sixteen rounds are fired.