I took the 6.5 Creednoor to the range the day before antelope season and with both the Federal 140gr SP and Hornady 120gr SP loads, I got bughole groups (two witnesses). Both loads shot to the same POI If it wasn't raining, I might have tried for five-shot groups.
I can't wait to start handloading for it.
George
P.S. And I got my pronghorn with the .243 Ackley.