"He could never argue velocity and trajectory" maybe he simply did not WANT to.
Mike, there is NO doubt that a 300 grain Nosler such as you use hunting is going to deliver a tremendous punch and expend its energy in a very effective way. I also had a friend years ago that, like you, was a far better shot at a moving target than one which was idle.Randy was a AAA rated skeet shooter in a former life (in Mississippi)and I guess he thought he was still shooting a scattergun when a rifle wasat his shoulder. We hunted quite a lot together (in Idaho as a matter of fact) and burned up a few thousand rounds of 30-06 reloads shooting jack rabbits out west of Idaho Falls.
If the rabbit ran,Randy was likely to nail the critter out to 200 yards or so. But let that rabbit sit at any appreciable distance and Randy would miss! Let it stop at 200 yards and the rabbit was usually dead from the recoil on my shoulder. We were a fairly deadly pair and kept trying, but we never did make a noticable dent in the rabbit population. What a hoot!!
We had a fairly nice apartment which we shared with another fellow from Wisconsin. We set up a reloading station in one of the living room closets and something like 4000 large rifle primers were laying on/in the carpet in that closet.

The fellow from Wisconsin (Jeff Towers - do you know him Dave?

) was going out with a local girl whose dad operated an apartment cleaning business (Jeff married that gal later.) Were we lucky, er whut!?