For most hunters, the 6.5 PRC is a short case hiding a 270 Win inside.
That's not to say the PRC doesn't have attributes the 270 lacks, just to say inside 5 or 600 yards any differences won't be realized except between the ears... but it
will hold one or two less in the magazine and probably have a shorter barrel life.
Still, if I weren't winding all this stuff down I'd likely build one