I use Federal Vital-shok with 130gr Sierra GameKings in my 270. They give awsome accuracy and good wound channels. It shot them better than even hand loads. But the Nosler Partions are good. I use them in my 06' because they hold upunder high velocity and, still mushroom well at range. Are you talking about the Winchetser Ballistic Silvertip or the old style Silvertip?I never could bring myself to try the Polymer tips on big game.