Description PRODUCT DETAILBrand: Hornady Category: Rimfire Rounds Caliber: 17 HM2 Model: Varmint Express Bullet Weight: 15.5gr Rounds Per Box: 50 Casing Material: Brass Bullet Type: Non-Toxic Lead-Free Muzzle Energy: 149 ft lbs Muzzle Velocity: 2050 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.