For me, 57.0gr of IMR 4350 and the 165gr Hornady or Speer, and probably any other 165 grain bullet, works very well. To steal the line from O'Connor - if an '06 won't shoot 57 grains of 4350 with a 165, you need an excorsist (sp), not a gunsmith.
Let's get a +1 on that. Does this rifle shoot any other loads well?