Ballistic Silvertip ammunition provides hunters proven immediate knock-down. Innovation combined with engineering excellence makes Ballistic Silvertip the choice for those who appreciate the legendary excellence Winchester is known for around the world. Product Specifications Caliber: 270 Winchester Short Magnum Bullet Weight: 150 Grain Bullet Type: Ballistic Silvertip Muzzle Velocity: 3,120 fps Muzzle Energy: 3,242 ft-lbs Quantity: 20 Rounds Per Box