Winchester Super-X RIFLE .243 Winchester Super Short Magnum 100 grain Power-Point Brass Cased Centerfire Rifle Ammo 20 Rounds. Specifications for Winchester Super-X Rifle .243 Winchester Super Short Magnum 100 grain Power-Point Brass Cased Centerfire Rifle Ammunition: Manufacturer: Winchester Caliber: .243 Winchester Super Short Magnum Number of Rounds: 20 Bullet Type: Soft Point (SP) Bullet Weight: 100 grain Cartridge Case Material: Brass Muzzle Velocity: 3110 ft/s Muzzle Energy: 2147 ft-lbs Application: Deer Package Type: Box Primer Style: Centerfire Lead Free: No Gun Type: Rifle Features of Winchester SUPER-X RIFLE .243 Winchester Super Short Magnum 100 grain Power-Point Brass Cased Centerfire Rifle Ammunition: Power-Point Assures quick and massive knock-down Strategic Notching Provides consistent and reliable expansion Contoured JacketMaximum expansion performance Alloyed Lead Core Increases retained weight for deeper penetration Package Contents: Winchester SUPER-X RIFLE .243 Winchester Super Short Magnum 100 grain Power-Point Brass Cased Centerfire Rifle Ammunition What is Winchester Super-X Rifle .243 Winchester Super Short Magnum 100 grain Power-Point Brass Cased Centerfire Rifle Ammunition good for? The manufacturer suggests that it is good for deer.Winchester SUPER-X RIFLE .243 Winchester Super Short Magnum 100 grain Power-Point Brass Cased Centerfire Rifle Ammo 20 Rounds X243WSS