Description PRODUCT DETAIL:Caliber: 10mm Auto Bullet Type: Barnes XPB Bullet Weight: 155Gr Muzzle Energy: 455 ft/lbs Muzzle Velocity: 1150 fps Rounds Per Box: 20 Application: Hunting Casing Material: Brass 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.