NO OFFENSE TAKEN!!! You gotta learn to walk before you can run, especially if you want to run fast over long distances......You are absolutely correct about starting at shorter distances. That's what I plan on starting with 500-700yds.
As far as the caliber I will go with, that's still up in the air, but likely a .338 (Lapua, Ultra Mag, Edge, or other long ranger). I don't think my 6.5-20 x44mm Nikon will hold up for these big bangers for real long so I'll keep it on my 223 or 25-06. But I was thinking Nightforce to put on the rig so I can keep the same rifle for starting out 500-700 yds, then move out when I learn how to shoot properly at those distance, handload myself, and the game in general.