 To get multiple shots requires either multiple barrels or a revolver cylinder; while this is fairly simple for shotguns, with double-barreled shotguns quite common and even four-shot designs like the FAMARS Rombo available, double rifles require very precise alignment of the barrels in order to achieve consistent accuracy.Modern double rifles are very expensive and designed for short-range use; the barrels are often regulated for ranges under for use against dangerous game.Wear in the mechanism is focused upon the small contact area of the latch, and the breech is difficult to seal properly once the latch wears.