Winchester Varmint X .223Rem 55 Grain Brass Case Centerfire Rifle Ammo 20RD BOX. 223Rem 55 Grain Brass Case Centerfire Rifle Ammunition 20RD BOX online at OpticsPlanet. This Winchester Ammunition features bullets that deliver powerful stopping power immaculate accuracy and predictability. With premium brass cases . With special offers on Ammunition and other high-quality rifle ammo from trusted brands like Winchester you re sure to find the best round for the hunting grounds or the range. Stock up today to save big on ammo and other top-tier tactical hunting and outdoor gear at OpticsPlanet. Specifications for Winchester Varmint X .223Rem 55 Grain Brass Case Centerfire Rifle Ammunition 20RD BOX: Manufacturer: Winchester Caliber: .223 Remington Number of Rounds: 20 Bullet Weight: 55 grain Cartridge Case Material: Brass Muzzle Velocity: 3240 ft/s Muzzle Energy: 1282 ft-lbs Application: Varmint Package Type: Box Primer Style: Centerfire G1 Ballistic Coefficient: .255 Lead Free: No Package Contents: Winchester VARMINT X .223Rem 55 Grain Brass Case Centerfire Rifle Ammunition 20RD BOX What is Winchester Varmint X .223Rem 55 Grain Brass Case Centerfire Rifle Ammunition 20RD BOX good for? The manufacturer thinks that it is good for varmint.Winchester WINCX223P: VARMINT X .223Rem 55 Grain Brass Case Centerfire Rifle Ammo 20RD BOX