Product Description Winchester Ammo Super-X (Super X) centerfire rifle ammunition delivers time-proven dependability for hunters who demand consistent performance in the field. This load is chambered in .300 Winchester Short Magnum (.300 WSM) and features a 150-grain Power-Point jacketed soft point bullet engineered for rapid, controlled expansion and strong terminal performance on big game. Loaded in brass cases with boxer primers, this ammunition is non-corrosive and reloadable for added versatility. Packaged 20 rounds per box (10 boxes per case). Product Highlights .300 Winchester Short Magnum (.300 WSM) hunting ammunition built on Winchester Super-X reliability 150 grain Power-Point jacketed soft point (JSP) bullet for quick knock down and deeper penetration High-velocity performance (listed around 3,270 fps muzzle velocity) for flat-shooting capability Brass-cased, non-corrosive, boxer-primed, and reloadable for dependable function and case reuse Ideal for big game hunting applications (including deer-sized and larger game) Specs Brand: Winchester Ammo Line/Model: Super-X (Super X) Manufacturer Part Number: X300WSM1 UPC: 020892214958 Cartridge/Caliber: .300 Winchester Short Magnum (.300 WSM) Bullet Type: Power-Point Jacketed Soft Point (JSP) Bullet Weight: 150 grain Muzzle Velocity: 3,270 fps (listed) Muzzle Energy: 3,561 ft-lbs (listed) Case Material: Brass Primer: Boxer Corrosive: No Reloadable: Yes Rounds Per Box: 20 Boxes Per Case: 10 Country of Manufacture: United States Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.