+1 on IMR 4064, I get great accuracy with it not only in my .30-06 but also in my .257 Roberts and .35 Whelen. It has been my go to powder for quite some time now, while I also use IMR 4350, RL-15 and Varget none of these gives as good accuracy as IMR 4064. I used IMR 4064 to develop a load for my .35 Whelen more than 25 years ago, prior to last fall's hunting season I did extensive load development for all three rifles, IMR 4064 was still the powder that gave the best accuracy. I use it with 100 grain bullets in the Roberts, 165 grain in the .30-06 and 225 grainers in the .35 Whelen, I'm sure it would work well with other bullets weights those are just my choices. Try it, I'm sure you'll like it.