On paper (reloading manual) 2" and 200 fps may not seem a great difference to you et al, however to me, there is a vast difference. I don't classify myself as a elk hunter, this was only my 7th elk that I killed. What I do know, through experience, is that they are a brawny animal. I will not utilize a standard cartridge for such an animal, case in point, I only use magnum cartridges for all big game. The Great Plains of Alberta is big wide open country and the magnum cartridge really makes a difference, even if it is only 2" and 200 fps.