With 225 gr. bullets in the Whelen IMR 4064 is your huckleberry, no need to look any further. In separate load development efforts 25 yrs. apart I got the same result, 4064 was the accuracy champ above the other powders I tested. Those powders included IMR 4350, RL-15 and Varget. With 4064 and 225 gr. Sierra of Nosler bullets I get three shot cloverleaf groups at 100 yds., better than "minute of deer" and plenty good enough for me.
What speeds you getting with 225’s and 4064? Thanks
