300 WSM Federal Terminal Ascent 200gr 20rdsFederal Premium Terminal Ascent . 300 Winchester Short Magnum 200gr. The Slipstream polymer tip initiates expansion at velocities 200 fps lower than comparable designs, while the bonded core and AccuChannel groove deliver 90%+ weight retention and deep penetration at any range. Nickel plated brass, non corrosive, reloadable. 20 rounds per box. Caliber: . 300 WSM Bullet: 200gr Terminal Ascent Bonded, nickel brass 20 rounds Slipstream tip, AccuChannel