I have personally whitnessed it is not. I have personally finished off elk with a 30 cal that a 6.5 creed wounded i dont need internet to tell me what one person got lucky with no situation is perfect and thats what you are relying on shoot a elk at 600 yards with a creedmoor. You personally dont have any experience to say it can i killed 6 bulls by the time i could drive. Any ballistic information will tell you creedmoor runs out of energy at 300 yards to ethically kill a elk. But according to you unless i pull trigger its not experience.