So the plot thickens...
My 7mm Rem Mag shoots a 160 NAB at 3000 ft/sec. My .30-06 shoots a 180 Partition at 2800 ft/sec. The NAB generates 183 more ft/lbs at 400 yards than does the Partition. At 650 yards (waaaaay farther than I will shoot) the difference is 207 ft/lbs.
The question becomes, practically speaking, is there anything a 7mm Rem Mag can do that a .30-06 can't?
P
Forget the energy figures.They are comparable cartridges.
A 160 gr bullet at 3000 fps from a 7 Rem Mag is one of those universal go anywhere-do anything BG loads,just like a 180 gr from a 30/06.You can use either one on anything from antelope to moose and elk. I'd shoot a grizzly with either one.
I think you'd see a bigger difference on animals based on the bullet construction than any real difference between the loads themselves.Personally I'd choose "tough" in bullet construction over "splash" but that's just me.