Not a concern, brother, not in the least. My Mk11 Mod 0 gun is 18.5" barrel, speed is 2530fps, with the 178 ELD-X projectile. It's all Lake City .308 Win brass that I got from @dpete. When I reload it, I use CCI 200 primers, Accurate 2495 powder, at 40.6 gr charge weight. Set the COL at 2.795", crimp it, and run it. 2530fps is pretty respectable with that heavy of a projectile, through an 18.5" barrel.
Now, the .300 Win Mag is a Rem 700 factory heavy barrel, 26", running a Hornady 225gr ELD-M projectile. Literally, whatever brass. CCI 250 primer, 3.340" COL, 71.8gr of Alliant RL-22. It's cruising 2932fps through the chrono. That's HAULING ASS. With a zero at 500 yards, it's a dial to 16.9 mils for a mile, the 1760yd target.
Shiit, man - I have some 195gr Hornady ELD-Ms loaded up - a bag full - that are in .308 Win cases. They work great.