Winchester Supreme Long Range is purpose-built rifle ammunition for hunting game at even the most extreme of ranges by incorporating BC MAX bullet technology. Engineered with precision drawn, thick-walled jackets for long range terminal performance and match grade accuracy. Winchester BC MAX bullets are Precision Rifle Perfected. Product Specifications Caliber: 300 WSM Bullet Weight: 195 Grain Bullet Type: BC Max Muzzle Velocity: 2,900 fps Muzzle Energy: 3,641 ft-lbs Quantity: 20 Rounds per Box