Both you and Rose are right to a point. Im old and think Rose is more right. All this marketing has been good for business, but not entirely true. Let me explain why i think this is so. The creed is a pergect example. They market it as having 300 magnum power. Use the right example bullets and energy only and they prove it. Those of us that are older all know about the old Taylor knockout formula, which takes bore dia and bullet weight into account. It is a much better guide to killing ability than energy. Use that and the difference is dramatic. So there is some kool aide there. The 28 nosler i have is nothing more than a 7stw on a shorter fatter case. I bit and built one. I could go on forever, but you get my point.
As I said, people need to synthesize the information being presented.