I guess this argument has two different aspects.

Same cartridge and different bullet. - Apples.
Same bullet and different cartridges. - Oranges.

Rockport - you are arguing apples and I am arguing oranges. In the apple category, I want a bullet that expands a lot but can still penetrate. I would like the best of both worlds, but would take slightly less expansion to get that pass-through.

As for the oranges, I guess I'm arguing against the people who prefer lower velocity because they think it leaves all the energy in the animal. They think faster cartridges just poke through and leave little energy anywhere but in the tree behind the animal.

But, we are arguing about different things. So, we could really agree on everything.....if we were talking about the same things. I am losing my focus.