Back when I still had a 338-06 I used more BG than 4320. It was a M700 ADL, 22" Douglas #3, in a Rem Ti takeoff stock, barreled by Mickey Coleman. Fairly light at just under 7.5 lbs scoped. I used the 200 Hornady for local deer, and the 210 Partition when heading for elk country. I wanted to use the 225 AccuBond but never found a load it liked. My standard with either the 200 Hornady or the 210 Partition(2768fps) was 62 gr Big Game with a Win primer. Not long before selling it I tried working up CCI mag primers and got better groups. I stopped below the 62 gr level with the mag primers.
I kind of miss that rifle, but getting old enough to not appreciate the recoil.