PC more accurate? In all honesty I really don't know as I have never done a side by side comparison, mainly because I have absolutely no interest in going back to that sticky gooey mess of lubing with grease, even if all lubed shots would go through one hole.
However, I can tell you this, I shoot primarily 9mm & 45 ACP out of numerous brands & models of handguns. I use a Ransom Rest and chronograph to test my handgun load development at 25 yards. I have no need to shoot a handgun round past 25 yards and I really have no interest is walking 50 yards to hang test targets to prove accuracy at longer ranges, so 25 yards works for me.
Attachment 238549
My point is I have numerous loads for both calibers using PC bullets that will group under 1-1/2" at 25 yards. I am considered a pretty fair shot and that is better than I can shoot. Also the the PC group as well as most commercial bullets are going to do. So I have all the benefits of PC and all the accuracy I need.
BTW: The most accurate full power rifle loads I have seen were shot with PC rifle bullets.