A suggestion ... and I agree, no need for 150 gr, charges. A charge of 100 gr, is plenty.

Try working up loads using loose powder. I am getting much more consistent elevations and tighter groups from a more customized powder charge just over 100 gr. than i was getting with either 100 gr. or 150 gr. of 50 gr. pellets. Not as convenient but not so difficult to manage in the field.