The autoloading shotgun that's built 4 speed. Winchester Super X® Autoloading shotguns have a worldwide reputation for speed, reliability and handling. The Super X® 3 was a tough act to follow, and making the Super X® 4 evolution of this popular shotgun series even better than its predecessor was a real challenge. That’s exactly what the gifted design engineers at Winchester Repeating Arms have done. The new Super X4 is lighter, faster cycling, smoother swinging and more ergonomic than ever before.