Johnny Ringo: The Arrival (1959)

Johnny Ringo, a notorious gunslinger, is hired as the sheriff of Velardi, Arizona, a wide-open frontier town. His first act as the Velardi's lawman is to hire the town drunk, Case Thomas, as his deputy. In his sober moments, Case is quite a gunsmith. He gives Johnny his latest creation - a seven-shooter - based on a design by the French gunsmith LeMat. Johnny hopes the seventh shot, a .410 gauge shotgun shell, will make the difference when he tries to run a crooked saloon owner and his henchmen out of town.