The off the shelf Hornady that I run is a 165gr running at 2840fps.
http://www.hornady.com/store/308-Win...Superformance/
I only run a 20" barrel (-~200fps), but it still hauls ass. I figure I'm good out to 300yd, the unit we hunt doesn't offer shots that long anyway.
Test Barrel (24") Velocity (fps) / Energy (ft-lbs)
Muzzle 100 200 300 400 500
2840/2955 2635/2544 2439/2180 2252/1858 2079/1574 1902/1325
Trajectory (inches)
Muzzle 100 200 300 400 500
-1.50 1.80 0.00 -7.60 -22.10 -44.70