Are you even comfortable shooting 300 yards?
I practice to 400 with my 06. At 500 small errors really add up. I'm considering building a 35 becaus most of my elk encounters are less than 100 yards. If I had the patience to sit and glass canyons for hours on end Then maybe I'd consider some magnum. Honestly my 270 is a good flat shooter. Rather be a good shot than have some magnum you can't shoot.
