Looking for something that's VERY accurate at around 500 yards that has more punch than my 22-250.
Thanks for your help............
I own a .260 Remington, and that cartridge is a very close ballistic cousin to the 6.5 Creedmoor. Like anything else, the load you're using, the rig you're shooting, and your skill will determine how far you can effectively use that cartridge, but the cartridge is capable. Also, what you're planning to do matters as much as anything else. Target shooting? Hunting? Protection against the zombie hoard?
With that said, 500 yards targets are a breeze with the 6.5's shooting match ammo. With my Accuracy International I've made hits out to 1,500 yards with the .260 Remington, and I regularly shoot it between 700-1,250 yards. With that said, your target matters when making these decisions! I would personally shoot a deer or elk to 500 yards with that rifle, if you're asking about hunting (admittedly, some folks wouldn't). I definitely wouldn't shoot an elk or deer at 1,250 yards with a .260 Remington, even if I can and have shot targets at that distance (the bullet is certainly still lethal at that range, but it arrives at that distance going a modest 1,507 fps, with 700 ft/lbs of energy -- too anemic for big game in my personal opinion).
The 6.5's are cheap enough to shoot, and they don't punish the shooter on a long range day. In a rifle as heavy as my AI (which I run suppressed), it feels like I'm shooting a .22LR. Obviously lighter rifles without suppressors or brakes will recoil a bit more, but the bottom line is that the 140 grain loads through these rifles don't beat you up like a .300 Ultra Magnum would. Still, that's all a moot point if you're planning to shoot a bull elk at 1,000 yards, and need the additional power.
As far as some of the .308 Win talk is concerned, it is ballistically inferior to the 6.5CM, and that's the bottom line. The advantages the .308 Win has is that it is still more common (outside of the competitive shooting world), and the barrel life is phenomenal. Don't get me wrong, the 6.5CM is pretty common these days, and the barrel life is pretty good. Ballistically speaking it walks away from the .308 Win pretty easily. I still shoot both, and enjoy both, so this is a user preference issue.