Well the time has almost come for my dad to send his rem 700 300 RUM LSS off to get rebarreled to something. First off, this rifle has to be no more then 11-12 lbs, and the lighter the better. We hunt canyons almost every day for elk and a rifle of that weight just is not fun to pack. Second, the range of this rifle needs to be from 100 yards all the way out to 1500 yards. Third it needs to be able to cleanly wack an elk at 1500 yards if need be. This leaves me with the cartridge to select. We are obviously wanting some horsepower here so I suggested the 338 EDGE w/the 300g SMK at 2850-2900fps. I was also looking at the 7mm AM w/the 200g Wildcat at 3200fps. From what I can see comparing these 2 ballistically is that the 7mm basically spanks it. However, I guess theres no replacement for that 300g slug. Also, the drop of the 338 is huge compared to that of the smaller diameter. I know we'll have to get at least a 20 MOA base, and for now he'll be using a leupold vx2 6-18 target scope. Hopefully that will get us out to 1500 yards with the 338. I know that would work with the 7mm AM as its way flatter shooting. We are open to suggestions here but dont want to get into anything to exotic. I was also thinking of the 7 STW with a 28" barrel shooting the 180g VLD or 200g wildcat, but after looking at the ballistics, I dont think that would have enough power at 1500 yards. I guess there is also the 270 AM or 277 AM shooting the big 195g bullet. I am kinda stuck as to whether I want the big 300g bullet with a .7 BC, or a lighter 190-200g bullet with a .9 BC or so.