Wha?

"...at 2,700 feet per second..."

Every single recoil figure listed included the velocity of the load for that round. He did everything but show his work on the math.

And if you read for content, rather than racing through to find things to complain about, you might have noted the last half was all reasons why Magnums are both not for everyone -and- aren't necessary.  That it was not the author's rifle was clearly stated in the 5th paragraph.