Pa. man fires cannon, hits neighbor's house - Yahoo! News UNIONTOWN, Pa. – A Pennsylvania history buff who recreates firearms from old wars accidentally fired a 2-pound cannonball through the wall of his neighbor's home. William Maser, 54, fired a cannonball Wednesday evening outside his home in Georges Township that ricocheted and hit a house 400 yards away. The cannonball, about two inches in diameter, smashed through a window and a wall before landing in a closet. Authorities said nobody was hurt.