I tried a bunch of options, included IMR and H-4831. The H-4831 was great with the 85 gr. NPT and some others.
In the HS .240, Magnum and MRP were the tightest shooters. I've settled on 53 gr. MRP with the 100 NPT at 3,250 fps as the best one. My last target was at 400 yds. It dropped 16" from a 225 yd. zero and put three holes in a 1.77" triangle. I know, just three shots and could I reproduce it..? Don't know, but it looked pretty good at the time and it's the gun I took to NM, pronghorn hunting.
DF
