I see these type of comparisons all the time and they are usually heavily biased and flawed. And they just get so repetitive. His video is pretty good. I like how he considered 60fps or 25 lbs of energy a wash. It is. But here's a couple important observations.
Whenever someone starts or ends their post with something like "I've been shooting my (insert caliber) for 30 years..." or "No thanks, I'll keep my (insert caliber)" the reader/ poster probably is not objective in their opinion or decision making. Sales of calibers developed from modern design and technology are not aimed at you. No one is going to change your mind. I built my house, not like my grandfather did, but by using the latest materials, technology, and building practices and enjoy the benefits that brings. Everyone is free to make their own decisions.
It's interesting that much of the post video discussion was about MV. Only one poster mentioned the recoil comparison, which was an important aspect of the comparison. It affects most people's ability to shoot accurately and everyone's ability to see their own impacts. Those both matter to me when I hunt. If you are one that believes recoil is not a consideration, then why is 270 the representative LA? Why not the 7RM or 7RUM? See, it gets silly after a bit. But having one cartridge in the mix that has nearly 50% more recoil than another, kind of isn't fair.
Nothing is said about bullet selection or quality factory ammo selection. I think that would not favor the 270 (both) or the 7-08 (factory ammo). That's an important aspect. If you're going to compare performance at 400-600 yards, the difference between ammo that will shoot >1MOA vs 2MOA or worse, becomes a big deal. And not everyone reloads or wants to. Also, several posts mention comparisons of heavy-for-caliber bullets in 270's or 7-08's, as well as 6.5CM. That brings up another missing but important aspect of this comparison, barrel twist. As far as I know, most common, factory rifles in 270 and (I'm less sure about 7-08) are not made with fast twist rates designed for the heavy-for-caliber pills. Nearly every 6.5CM will be a 1:8 twist, designed to shoot the long, heavy, high BC and SD bullets that the video speaks of.
Finally, the video simply stated "Short Action is better than Long action" and gave no explanation. I generally agree, but feel that it is much more subjective and it depends greatly on the rifle's purpose and way it's used. I'm surprised that statement wasn't beat to death in subsequent posts. But if one is going to make such a blanket statement, then why in the heck are you comparing 2 SA's vs a LA? Why didn't he pick a 6.5x284 or 26 Nosler or a 270WSM or...? He failed to state the premise for picking the cartridges he compared. I assume it was limited to "common" calibers. But even that classification is subjective.
