I will never kill more elk with a single cartridge, than I did with a 25-05 when I was young. Shooting all of those elk with a 25-06 is the exact reason I use much larger rifles as an adult. The energy sucks for elk. It's a marginal cartridge, and most people damn well know it. You can drop one with a .243 to the heart... hell I've seen a bull killed with a .17rem right between the eyes. Allow a margin of error for a less than perfect shot by using more gun. Show some respect to the elk, which live in country where rests are imperfect, wind is a factor, and at altitudes that can make steady breathing difficult after a scramble. When you're out of breathe from scrambling over a rise, trying to nail a bull that's about to disappear.... (or staring at a trophy with a less than ideal angle).... you'll realize that the perfect shot isn't always the shot you get.