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