IMR 7828 worked well, in my 7 mm Rem Mag. with 154 grain Hornady's ( good Velocity and accuracy ).
After selling that Rifle,.. I tried the last couple of, Pounds, in my New ( bought in 2017 ) Tikka T-3, in .270 WSM with, 140 gr. Berger Classic Hunters and am getting 3,185 FPS with, 1.5 inch, 200 yard, 5 shot, groups ( 5/8th's to 3/4 MOA ) and, 3.5 to 5.5 inch groups at, 700 Yards.
I've used this Powder on 2 Elk so far, ( Snowy / Cold, Late Nov / Dec., Hunts ) and IT,.. goes, Bang !
RL-26 is,. slightly Faster but, also,.. UN-obtainum, usually.
IMR 7828, IS, a Proven "Winner" IMO.