I have a buddy with similar neighbors outside Ponca City. After the sheriff's paid him a visit, and reaffirmed he was fine to shoot on his property, he bought a small black powder cannon. It doesn't shoot projectiles, but it makes a hell of a racket. He's 'that' neighbor.
LOL, that would be a good one. Otherwise invite a bunch of people over and we can get fifteen or twenty of us all doing mag dumps.