Description The latest offering from Winchester, the new 223 Rem BTHP, is a highly accurate round that is excellent for varmint hunting and target shooting.PRODUCT DETAILBrand: Winchester Ammo Category: Centerfire Rifle Rounds Caliber: 223 Rem Model: Super X Series: Rifle Bullet Weight: 55 gr Rounds Per Box: 20 Casing Material: Brass Application: Varmint,Target Boxes Per Case: 25 Bullet Type: Boat-Tail Hollow Point (BTHP) 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.