I’ve killed a bunch with a 243 several well over 200 yards. Never saw a deer take a step until after I had “outgrown” the 243. It was bad medicine. I can guarantee you this if you don’t kill the deer it ain’t the caliber. I also have a creedmoor it has claimed 3 of the biggest bucks I’ve ever killed. All were 200 pounds + between 70 and 330 yards. If my bald head could grow a manbun and fit my muffin top in skinny jeans I’d gladly sport it all if that’s the requirement for 6.5.