Winchester Ammo X124 Super-X High Brass 12 Gauge 2.75" 1 1/4 oz 4 Shot 25 Bx. Super-X high Brass provide time proven dependability for consistent performance at an exceptional value. These shells provide powerful high brass performance for long-range knock-down power and a one-piece hinged wad for consistent, tight patterns and reduced felt-recoil. With a 209 Primer for reliable ignition and consistent velocity.