Best 7.62 NATO system?

I'm looking into either doing separate upper/lower combo, or full rifle- I want a 7.62x51 chambered rifle for both long range (talking 18" or 20/22" barrel) and hunting. I've looked into POF (as I have a POF in 5.56 currently) and looked at Daniel Defense but they only make 6.8, which I hear for muzzle velocity and max effective range doesn't really compare well with the 7.62 NATO cartridge (or am I wrong on this?)... I looked at the LaRue PredatAR 18", that looks pretty nice as well. Any more? Should I do a full rifle or do a separate lower/upper combination?

Springfield or other M1A. Always worked, always will.

http://youtu.be/evr_tP9cJWY

^^^^^^so full of win.

G3 platform such as HK91, PTR91 etc.

This thread is so pure of win. We can stop the forum at this point.

Build your own based on a Mega Arms upper and lower and a Rainier Arms ultra match barrel.

cstone wins November member of the month-that video was hilarious [ROFL1]

M1A can be a bitch to mount optics on and issues with their gas systems can cause accuracy problems.

Scar-17 and LaRue OBR are terrific 7.62 systems.

Care to elaborate on the gas system issues. I have an M1A and it shoots just fine and is very accurate. I would say tension on the front band of the stock is more crucial than the gas system. Also, how is the gas system any different than the SCAR? Aren't they both piston systems?