The simple fact is that for now, as it stands, the 6.8 W has 20 grains more of long for caliber bullet, in a shorter fatter case. It has more energy upon impact with 170's at any ethical range than the PRC. I don't care if it has a niche or not, or if it will make it. But if I where shown these two side by side, there would be no question which one I would buy
I don't own a 270 (6.8) anything. But I will soon. Most likely a 270 AI, Sherman, WSM, RPM, exc, exc with a long throat and fast twist.
To the OP, don't buy into hype. like WildRose said: