Don, from hornady's website
168gr 308 Amax @ 500yds
Velocity 1839fps
Energy 1261 ftlbs
Drop. -48.9in
https://www.hornady.com/ammunition/r...68-gr-a-max#!/
143gr 6.5 Creedmoor eldx @ 500yds
Velocity 2030fps
Energy 1308 ftlbs
Drop -44.4
So after 500yd the Creedmoor is going 191fps faster, has 47 ftlbs more energy and has 4-1/2" less drop, all with less recoil.
https://www.hornady.com/ammunition/r...sion-hunter#!/
Even the 178gr 308 bullets @ 500yds only have a slight advantage in energy at 1346 ftlbs, but are still traveling slower at 1846fps with 6-1/2" more drop.
https://www.hornady.com/ammunition/r...sion-hunter#!/
Facts are facts.