Description Brand: Federal Category: Centerfire Rifle Rounds Caliber: 223 Rem PRODUCT DETAILModel: Power-Shok Bullet Weight: 55gr Rounds Per Box: 20 Casing Material: Brass Application: Small Game Bullet Type: Jacketed Soft Point (JSP) Muzzle Energy: 1282ft lbs Muzzle Velocity: 3240 fps Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.