Don't we have to consider the area your predominant hunting ground is?
For instance up in my neck of the woods there are no long range opportunities. We have bush inside the bush. Most Moose and Bear are shot in the 50 to 100 meter/yard range.
I have that as well as the high probability of a long shot on Mule deer and elk.
I saw a large buck yesterday afternoon while grouse hunting. He was on a ridge above us. Likely 600-650 yds., uphill (approx.) 48* angle. Wind5-6 mph. 90% value L>R. If I had my 7RM I could have shot him. 150 gr. Silvertip 3100fps.
The day before I tracked a black bear to within 70 yds. It was a sow with a
I strongly suspect that if the shot could have been made at 650yds with the 7mm mag and 150gr, then the shot could also have been made with a 308 and a 165gr bullet. We're talking a deer here and if someone has the ability to make that shot, then the cartridge they do it with could vary a great deal.
But I strongly suspect that the average shot at game is well under 300yds.