All comparisons are odious and Weatherby's add copy writers like to stack the deck. The technicians should write the factual numbers. Look at the 6.5x300 trajectories, they use a 3 or 400 yard zero and compare it to other cartridges with a 200 yard zero. Also they use factory loads compared to hand loads. What pressure is the Weatherby? I bet it is 65,000 compared to 64,000 for the 264 Win.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli