Diminishing returns in regards to being able to handle the increased recoil from the higher velocity/ higher pressure loading used is what I meant.
If a big bullet at revolver generated velocities uses a bullet constructed to break bones in the legs and shoulders, and does so at velocities generated in the 460 Smith and Wesson and 500 Smith and Wesson, than what more is needed?
A 454 Casull in the 460 platform and a 500 JRH in the 500 platform should also be sufficient. The 460 can shoot a 395 grain hard cast at about 1400 to 1500 fps depending on barrel length. And a 500 JRH can shoot a 500 grain to a sufficient velocity also. So what is the need for more and more?
If I am using a .460, I'm going to load it like a .460 or there is no point in carrying the larger platform. That said, if I'm carry and hunting with a .454 or .500 JRH, I too will load them to potential. I load Punch bullets in my .500 JRHs to about 1,400 fps -- about as hot as I can while maintaining reliability. I would run them considerably faster in a .500 Smith and yes, they will impart more damage. With big, dangerous animals, more is better. Have you been on the ground with big bovines? Nothing ever seems to be too much of excessive! Don't misunderstand me here. There are lesser calibers that work great on the big stuff, but extracting the maximum reliable horsepower from them simply maximizes their terminal potential.
