I suggest the 150 gr Nolser Ballistic Tips from Remington. They are extremely accurate out of my Sendero, and the terminal performance has never let me down. Specifically, I have put three rounds through the same .280" hole at 100 yards. There is a thread in the hunting section of this site about them, although the author claims that they failed to expand on an elk, and I dont understand how. They basically have a hollow point with a plastic plug, and are made for long-range use on deer and antelope. The plastic tip prevents nose deformation during chambering and recoil, and is very aerodynamic.