I've found that magnum primers and RL-17 is a bit of a magic combination for the 30-06, and I use it for 180's and 210's. Velocties are typically 100 fps or so better than with any other powder I try, and accuracy is at least equal. I would reccomend starting around 56.0 grains and working up.
I also use this exact same primer/powder/bullet combination in my 300 winmag BTW and it's great stuff.