Again, complete ignorant nonsense. 2,800 fps is reasonable out of a 24" barrel, There's published load data at that level and I've done it, as have many others that you've ignored in past threads. Beyond that, the same bullets at 2,600 to 2,700 fps work just fine.
I've also killed animals, elk, Antelope, deer with heavy bullet 6.5 Creedmoor, and have friends that have killed many more with heavy bullets at and beyond the 200 - 300 yd range you reference. Same with other cartridges like .308 with heavy bullets at moderate speed. They work very well, this is actual blood on the ground, not hand waiving and guessing.
Have you put any heavy 6.5 bullets through animals to back up your conjecture that they don't work well? Do you have any experience at all with what you keep repeating about .308 based rounds? If not, what makes you think your baseless theory overrules every one else's actual experience?
I'm glad you're excited about your new .270, but that's not a good reason to take over and dump on every thread about 6.5 and related cartridges. You have no idea what you're talking about, please stop.