Not really, that’s apples and oranges. In your opinion a .30 caliber kills better than a .243 caliber. But you haven’t explained why other than your displacement comment. I completely disagree. In my opinion, and based on a whole bunch of dead deer, I believe speed kills faster than bullet diameter. I’ve had way more bang/flops with bullets traveling in the 3200fps range and higher. So I now typically carry a 25-06 with TTSX bullets (3350fps) or a 7 mag with TTSX bullets (3300fps). Both guns make exit holes, both guns have a tough enough bullet to get to the vitals at any shot angle. In my experience both of these guns/cartridges kill faster than a .300 win mag. I guess I could shoot my 300rum and get those velocities but at a much higher cost and much more recoil.

But according to you the 25-06 would fall into pea shooter category.