I live and hunt in Idaho and have made a one shot kill on an elk at very long distance under perfect conditions with my 6.5 Creedmoor. While I would never attempt to shoot another animal at this yardage, shot placement made the kill. So, I now have a 6.5x.284, which is close in ballistics to the 6.5 PRC. After shooting a deer at 751yds. with it last fall I would not hesitate to shoot an elk at up to 800 yards maximum range. Although the YouTube gel tests on the new 156gr Berger showed terrible performance, I think that better performing higher BC bullets are forthcoming. The performance of the Accubond LR bullets I have been using have been excellent so far. I would not hesitate to go with the 6.5 PRC over the 300!