At 600 yards the 270 WCF, 7mm-08 Rem and 6.5 Creedmoor with 130 and 140 grain bullets all hunt about the same and have remarkably similar ballistic characteristics down range. No one should lose any sleep over the physics these three chambers display nor their ability in the field. The 7mm-08 Rem and the 6.5 Creedmoor offer less recoil and with specific loadings for long range work will better the 270 WCF way out there past 750 yards, but again nothing to lose any sleep over. All three are top notch on the plains or in the mountains.
