I just ran across a sweet deal on a custom 260 rem on a 110 le platform, the problem is i know nothing about the cartridge other than it's another 308 wildcat. I love my .243's and am looking for another one, however this is pretty tempting. Is it any better than my .243 in the 6-800yd range? How about the 100-600yd range? Or maybe you can just point me in the right direction to learn more, thanks. blue