No, I haven't. Have you ever been to a sales and/or marketing meeting?
Ford will tell you why their car is better than Chevy. Chevy will tell you why theirs is better than Ford, etc.
At the end of the day...it doesn't matter. All will get you to work and back (have my doubts about the ford though..
). Only people who use that vehicle at the extreme edge of it's capacity will notice any difference.
As a hunter in East TN (you just seen yesterday what I hunt in), do you really think any perceived/actual differences will matter?
Maybe out west, but definitely not here.
I would venture to guess that 95+ percent of all hunters have no business shooting at an animal at a distance that any difference would be noticed.
Now target shooters... different story. But this is a hunting forum, so....
That said...if I was hunting out west where long range shooting was the norm...and wanted to stay with 6.5....it would be with something bigger, like a 264 win mag.