Try some of the Hornady ammo. I like the SST's, but there other stuff shoots really well. The new superperformance ammo will give you an extra boost in velocity and power too. It's good stuff. If you can get it, MidwayUSA has it, Privi Partizan ammo is a cheap ammo that has shot suprisingly well for many people. I've taken a few deer with it myself and in my 700 308 it shot 3/4" groups.

Remington Core-lok 165 Gr works great in my '06