7mm Mauser Winchester Power Point 145 GrainWinchester Super X Power Point 7mm Mauser (7x57mm) 145gr Soft Point. The Power Points exposed soft nose and strategically placed jacket notches deliver uniform expansion and massive energy release on deer and medium game. One of the few major manufacturers still producing quality 7mm Mauser hunting ammunition. Reloadable brass, non corrosive. 20 rounds per box. Caliber: 7mm Mauser (7x57mm) Bullet: 145gr Power Point SP 20 rounds Uniform expansion,