Winchester Super-X RIFLE .223 Remington 64 grain Power-Point Brass Cased Centerfire Rifle Ammo 20 Rounds. Specifications for Winchester Super-X Rifle .223 Remington 64 grain Power-Point Brass Cased Centerfire Rifle Ammunition: Manufacturer: Winchester Caliber: .223 Remington Number of Rounds: 20 Bullet Type: Soft Point (SP) Bullet Weight: 64 grain Cartridge Case Material: Brass Muzzle Velocity: 3020 ft/s Muzzle Energy: 1296 ft-lbs Application: Big Game Varmint Package Type: Box Primer Style: Centerfire Lead Free: No Gun Type: Rifle Features of Winchester SUPER-X RIFLE .223 Remington 64 grain Power-Point Brass Cased Centerfire Rifle Ammunition: Power-PointAssures quick and massive knock-down Strategic NotchingProvides consistent and reliable expansion Contoured JacketMaximum expansion performance Alloyed Lead CoreIncreases retained weight for deeper penetration Package Contents: Winchester SUPER-X RIFLE .223 Remington 64 grain Power-Point Brass Cased Centerfire Rifle Ammunition What is Winchester Super-X Rifle .223 Remington 64 grain Power-Point Brass Cased Centerfire Rifle Ammunition good for? The manufacturer thinks that it is suitable for varmint big game.Winchester SUPER-X RIFLE .223 Remington 64 grain Power-Point Brass Cased Centerfire Rifle Ammo 20 Rounds X223R2