Been shooting them for over a decade...In a 5R 11.25" twist barrel with amazing results. Years ago, Brian Litz (the head ballistician for Berger) used to converse with me over on Long Range Hunting before I got banned, and he ended up using them in his .308 Win for his first 1,000 yard match...And won.
Velocities will vary due to any number of factors, but I was averaging around 2,400-2,500 FPS MV with the 24" barrel. If you run out a 215 Hybrid on a ballistics chart at 2,500 FPS MV, you'll be shocked when it busts the 6.5CM's ass at around 600 yards, and then there is no comparison out to 1,000 yards...The .308 Win 215 Hybrid wins hands-down in both drop and windage.
If you have a suppressor, you can also make a cool 215 Hybrid subsonic load with CCI 200's and TrailBoss powder. Sounds like an old Red Ryder BB gun if you get it down around 1,000 FPS MV.