Blame is not the answer and it is not good for the forum to point fingers at each other.
What some of us have been trying to poit out is that every bullet has a velocity range that it works in including PB's if you can find that range and you are willing to live with the trajectory that it gives you then all the popular ones including PB's will do the job; you have to remember that when PB's were designed the normal load was about 70 to 80 gr of black FF and thats where they work best but the dangerous game 444 and the platiniums can handle a bit more. They were not designed for mag loads or inlines to start with in my humble opinion even though my Omega will group them in 1.5 inchs @ 100yds with 150 gr RS,which makes a fine varmit load. Lee