You can always count on anyone advocating for the .30-06 to have all sorts of misinformation. You're no exception.
.308 AI shooting the 200gr Terminal Ascent. The top temp-insensitive powder is H4350 and velocity out of a 22" is right about 2600 at max load. It doesn't hit 2100 ft/s until 450 yards at elk elevation, and that's with a 200gr not some piddly 165. Not that it matters much, since the bullet is designed to work all the way down to 1350 ft/s.
You simply don't know what you're talking about.
LB, what is the case capacity of your 308 WCF AI in H2O? Also, how many grains of H4350 are you applying as Max Load? BTW you know P.O. Ackley considered the improving of the 308 WCF a worthless endeavor stating that consideration to do so presented no discernible advantage over the standard in powder capacity or noticeable increase in velocity. In fact he stated in his findings it was due to the lack of tapering on the standard, that being only 0.016”. So if you can get 2,600 fps out of a 200 gr. bullet with a BC of .608 (the Ascent, that’s a long .30 cal bullet) in a 22-inch barrel from a 308 WCF AI, whereby shorter (less BC) bullets out of the 308 Win barely scratch 2,400 fps I’d like to know how you do it. Seriously.
