ds1304:
Here are my comments:
Rifle:
Rem700 SF. If this is the rifle that I think it is, with a varmint contour barrel (.82 diameter at the muzzle) with an HS Precision stock, it is a great platform from which to begin a long range rifle project. My suggestions would be to have the trigger tuned and have the action skim-coat bedded.
Optics:
Huskemaw optics are quality glass and can certainly be set-up for a 1k shot. there are quite a few good alternatives. Be sure to look at Sightron, Leupold and Bushnell. Just for kicks, look at Nightforce too.
Be careful when you say "put a Huskemaw scope on it and be good". Depending on how much internal adjustment any scope has, you might need to set it up with a canted (rear higher than the front) base.
Caliber:
For the sake of this discussion, the conventional wisdom says you should have 1500lbs of energy to cleaning kill an elk (1000lbs for deer).
7RemMag is a great cartridge, with the 168VLD traveling at 3000fps it has 1500lbs of energy at 550 yards. This will not reach your goal of a 1k shot.
300WinMag with a 210VLD traveling 2700fps has 1499lbs of energy at 1k.
Given this, I would suggest you choose something in the 30mag category.
Other equipment you need to consider:
Spotting scope
Weather station
Laser Range Finder (that can reach beyond 1k)
Be sure to practice, practice, practice. A rifle may have the capability to reach waaaaay over there, but it's only as good as the guy on the trigger. Your 308 is a great practice rifle.
Have fun!
I want a long range hunting rifle for Elk. If i buy a 700 Rem Mag 7MM SF can I just get the trigger work done and put on a Huskamaw scope and be good at 1000 yards. I already shoot well out to 600 yards with my 308. I am new to this site as well as long range hunting. I have only had my 308 for 7 months and have been shooting a lot with it. I cannot afford a lot of money for a quiality rifle, I am limited to what I have listed. Any help here would really be appreciated. I was planning on shooting the 168 VLD Berger bullet.