Dredged back through my old posts to find the info, but here are measured velocities for loads I've worked up for my shorter hunting rifles, some .308 mixed in.
20" 6.5 CM:
127gr LRX @2,850 fps
140gr BT @ 2,700 fps
142gr ABLR @ 2,730 fps
18" 6.5 CM:
127gr LRX @ 2,742 fps
129gr IL @ 2,795 fps
130gr TGK @ 2,740 fps
142gr ABLR @ 2,680 fps
140gr GD @ 2,670 fps
20" .308 Win:
178gr ELDx @ 2,595 fps
18.5" .308 Win:
150gr IL @ ~2,750 fps
16" .308 Win:
168gr BT @ 2,600 fps
178gr Amax @ 2,510
18.5" .30-06:
165gr SBT @ ~2,800 fps
180gr AB @ 2,690 fps
190gr ABLR @ 2,635 fps
16" 6.5 Grendel:
120gr GD @ 2,420 fps
123gr SST @ 2,430 fps
129gr IL @ 2,330 fps