I tried several recommended powders incl. RL-15 and Varget. What my rifle liked best was 150 gr. NBT's and H4895. I wasn't expecting that, but am going with it. Best group in Kimber Classic with Broughton 5C 23" bbl was 3/8".
145 score 8 pt. La. Whitetail last fall, DRT.
DF
