The Winchester Super X X12RS15 delivers consistent accuracy and reliable terminal performance for hunters pursuing large game at moderate ranges. This 12-gauge rifled slug ammunition combines proven powder charges with precision-engineered projectiles to maximize effectiveness in smooth-bore shotguns.
What Makes This Different
Unlike standard foster slugs, the Super X rifled slug features enhanced stabilization grooves that improve flight consistency and reduce drop over distance. The 1-ounce slug maintains velocity better than lighter alternatives, delivering approximately 1,600 fps muzzle velocity with 570 ft-lbs of energy at 100 yards. Winchester's quality control processes ensure lot-to-lot consistency that competitive shooters and hunters depend on for predictable point of impact.
Key Features
- 1-ounce rifled slug for maximum energy transfer and penetration
- 2.75-inch hull length fits all 12-gauge shotguns including 3-inch chambers
- Precision-formed rifling grooves stabilize flight path for improved accuracy
- Low-flash powder reduces muzzle signature in low-light conditions
- Brass-plated steel head prevents extraction issues in semi-automatic actions
- 5-round boxes minimize storage space while providing adequate supply
- 50-round case quantity supports extended training sessions and hunting seasons
Field testing demonstrates effective performance on medium to large game at ranges up to 75 yards, with consistent 3-inch groups achievable from quality shotgun barrels. The slug design performs reliably in both pump-action and semi-automatic shotguns, cycling smoothly through various action types. Weather-resistant primer and powder formulation maintain ballistic consistency across temperature ranges from -20°F to 140°F.
Technical Specs
- Gauge: 12
- Shell Length: 2.75 inches
- Projectile Weight: 1 ounce (437.5 grains)
- Muzzle Velocity: Approximately 1,600 fps
- Muzzle Energy: Approximately 2,485 ft-lbs
- Packaging: 5 rounds per box, 10 boxes per case (50 total)
- Primer: Non-corrosive, all-weather
- Country of Origin: United States
Winchester's Super X line represents decades of ammunition manufacturing expertise focused on consistent performance and reliability. The X12RS15 rifled slug provides hunters and tactical users with dependable accuracy when single-projectile performance matters most.