Two friends went to Africa for their six Plains game each. They carried 27" & 28" custom 7 Mags. Their load was the 162 SST at 3150 fps using Retumbo and Fed 215's. They killed their combined 12 animals including Kudu and Eland, one shot each, dead in their tracks. The PH was extremely impressed and wrote an article about their rifle and loads.
For deer, I have killed a lot of deer with the 154g SST with a Muzzle Velocity between 3150-3250 in 26", 9T. The 154 sst is very, very effective and accurate, and it likes to be seated close to the lands vs book length.
My family has killed 7 Bulls with the old timmey Hornady 154 Interlock flat base in 7 Mags using IMR 4350 or R#25, and the last one was at 550 yards.
With all brands bullets I shoot, I sort them by ogive length, including bergers, noslers, and sierra's.
My brother and I worked up loads for the Nosler long range accubonds in our 7 Mags, sorting by ogive length, and seating the 175's to within .003 of "touch" of the lands, brother they shoot tiny groups with R#22(2850 fps, CCI 250)and R#26(3050 fps, CCI 250). 150g LRAB I could not get to group in the 7 Mag nor 7 STW, but brother got them to shoot well in one barrel jumping them over .200"....they blow up a deer, with good penetration.
If you do not sort the LRAB and other brands of bullets by ogive length, you will get flyers
IN our 7 Mags, there is a load with R#26 with Winchester Mag primers that pushes the 150g Nosler ballistic tip and 154g Hornady's at 3250 with a SD less than 10 fps. Most would ignore the 150g Nosler ballistic tip for elk but it proved to be an excellent killer.