Went to a gunsmith yesterday. He and another customer suggested I should consider the 260 Remington as a 800 - 1000 yd cartridge. I was planning on a 308 but after some reading last night I cant believe I've missed out on this little cartridge for my custom build. The 140gr Berger VLD look like needles. And from what I could surmise, it out performs the 308 Winchester at extended ranges ie: stability with less wind drift. Anyone have experience with this cartridge for this purpose? I'm also thinking of Lapua brass. Since they don't make 260 Remington brass (accuracy wise) - would it be better to neck up from a 243 or down from a 308.