Winchester Super-X 270 WSM (Winchester Short Mag) 150gr PP Rifle Ammo - 20 Rounds - For decades, hunters and shooters have relied on Winchester Super-X rifle ammunition. Best known for time-proven dependability, the rounds offered include a hollow point and lead core for rapid expansion on game, as well as a thin-wall jacket, which reduces engraving forces for improved accuracy. Exceptional Quality & Outstanding Performance Made In The USA