Spoke to a benchrest shooter the other day and he recommended IMR 4064 for a 165 grain bullet 30-06 loads and he said it is also very good for 130 grain bullets in the 270 win. I looked it up and it's listed in the manuals. Anyone have any experience with these loads? Is the powder temperature sensitive or are there any other negatives with this powder? It seems most sources say that h4350 is the best '06 powder, this guy was confident that the IMR 4064 was better.