I said it was my opinion on distances used. never said I was right. This is my take on it, if I am set up to shoot 500, and I am shooting well along with monitoring conditions, which would most likely be good for this, I will end up taking less shots. The 1-2" spread at 100 will now be 6-12" at 500, and I can walk on by that charge and pull the bullets.
I watch guys do this all the time, there is a tendency to call pulled shots when they weren't, and they will try fill in the blanks with a load that was never going to fly.