Winchester Super-X 12ga 2-3/4" 1oz. Rifled Slug HP? Hollow Point: Provides superior stopping power and hard hitting performance time after time ? Two-Piece Sabot Slug: Unique two-piece sabot for improved accuracy? Designed for Use in Rifled Choke Tube or Fully Rifled Barrels •Gauge : 12 •Shell Length : 2-3/4"•Velocity : 1600 fps •Shot Size : Rifled Hollow Point Slug•Oz. Shot : 1 •Rounds Per Box : 15 •Rounds Per Case : 150