Winchester Ballistic Silvertip .223 Remington 55 grain Fragmenting Polymer Tip Brass Cased Centerfire Rifle Ammo 20 Rounds. Innovation combined with engineering excellence makes Ballistic Silvertip the choice for those who appreciate the legendary excellence Winchester is known for around the world. Specifications for Winchester Ballistic Silvertip .223 Remington 55 grain Fragmenting Polymer Tip Brass Cased Centerfire Rifle Ammunition: Manufacturer: Winchester Caliber: .223 Remington Number of Rounds: 20 Bullet Type: Fragmenting Polymer Tip (FPT) 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 Lead Free: No Gun Type: Rifle Features of Winchester BALLISTIC SILVERTIP .223 Remington 55 grain Fragmenting Polymer Tip Brass Cased Centerfire Rifle Ammunition: Polymer TipResists deformation maximizes long-range performance and promotes expansion Uniform JacketJacket designed with thin uniform side wall to promote rapid fragmentation and accuracy Lead CoreProvides rapid fragmentation in varmint bullets Boat Tail DesignSolid base delivers excellent long-range accuracy Lubalox (Black Oxide) CoatingReduces engraving forces and barrel fouling Package Contents: Winchester BALLISTIC SILVERTIP .223 Remington 55 grain Fragmenting Polymer Tip Brass Cased Centerfire Rifle Ammunition What is Winchester Ballistic Silvertip .223 Remington 55 grain Fragmenting Polymer Tip Brass Cased Centerfire Rifle Ammunition good for? The manufacturer says that it is suitable for varmint.Winchester BALLISTIC SILVERTIP .223 Remington 55 grain Fragmenting Polymer Tip Brass Cased Centerfire Rifle Ammo 20 Rounds SBST223B