Re: 7 Mag or 264 Win Mag for build?
yea, and i know some .308 loads that will duplicate the more tame .30-06 loads. how far down that road do we go?
given a BC, the only way to improve exterior ballistics is by increasing muzzle velocity, and that takes increasing displacement and/or pressure given equal barrel lengths.
seriously the 7 mag has a well proven track record and could take one third of the drop away from the .308 performance.
i'm not slammin' the .280, it's a dandy in it's own right, but if you are stepping up from a .308 in the interest of "extra long distance" like the OP, IMHO take a real step, and it would take some effort to top the 7mm RM in that role.