Not sure of the relevance here, but I once read an article discussing the relative "Efficiency" of various rounds, which relates to how a particular round converts it's powder load to PK, in the broadest sense, but also discussed things like effects on barrel life, recoil v. bullet energy, etc.
The findings were that many of the modern military standard loads rank very highly on the "efficiency" chart, which is not too surprising, considering the time, money, and effort the militaries of the world put into maximizing the effectiveness of the rounds they use, as unnecessary bulk, recoil, weapon wear, and excessive use of raw materials are all things the military seeks to avoid.
I don't remember where I read the article, or who wrote it, but IIRC, they found that the most efficient rounds were in the .35 caliber range, like the Whelen and Ackley(Improved). But IIRC, the .308 Winchester was the most efficient .30 caliber loading, with the 30-06 somewhere around 3rd place or so.....but as I'm recalling from (poor) memory, I could be way off.
For what that's all worth, anyway....