I have used RL22, H4831SC, and IMR7828SC, in my 7mm Mag. I usually us
160gr Accubonds most of the time, killed one Elk with a 150gr Nosler Partition,
it almost penetrated the hole length of the body. In my rifle the RL22 seems
to work best.

7MM Rem. Mag
 

Had a Ruger M77 MkII that I used 140 gr. NPT w/Winchester cases Fed. 215 primers & 76.0 gr. H-1000 to achieve 3300+ fps. Accuracy was excellent and brass life was about 3 uses before splitting necks. I would approach this charge carefully as It was way over in my Rem. 700.

H-1000 & 150 BT Noslers

160 grain Nosler Accubond over 67 grains of RL 25.