You two are funny. Sure, with a 140 the 270 can run 200 to 300 fps faster than the 6.5CM with an equivalent weight bullet. The 270 also does that in a long action with 13 to 16 grains additional powder. When comparing the two powder volumes, the 270 uses 30 to 40 percent more powder than the 6.5CM does. The 270 Winchester uses the same volume of powder that the 6.5 PRC does and that additional powder charge it the 6.5 PRC brings the velocity back to the exact same rate as the 270 Winchester.
The OP asked specifically about using the 6.5CM on elk and deer. The 6.5 Creedmoor will carry enough velocity to kill any deer or elk out past 600 yards with factory ammo using optimized bullets. This means that the 6.5 Creedmoor will work to distances most people can not make an ethical first round hit on a 2 MOA target.
The whole argument about one cartridge not being enough but this other one being great are hog wash. Put holes in the vitals and things die. Use optimized bullets in everything and stop worrying about bullets and the case they are launched from and more about accuracy, anatomy of the animal, and bullet placement.
Jay
