4064 is good and so are either of the 4350's (IMR and Hodgdon.) 4831 is a slower burning powder and when I tried it in the 30-06, it was difficult getting enough powder in the case, and when you do, you end up compressing it down when you seat the bullet. Which is why my preference is H4350. It's the slowest burning powder that fills up the case just enough so that you don't have to compress it excessively to get the bullet in. I prefer Hodgdon because it's temperature insensitive. IMR is not.