My Nosler manual shows a 30 cal. 180 going 2,872 & the Nosler Manual shows these two very close to each other with the 200, while 5 of my other manuals show them to be 200-250FPS apart just
as I said in the first post for ALL bullets. But if we look hard we can find loads in a fast barrel that will show different, it's a rather old game.
Hornady light mag ammo is as follows for the '06 150 gr. 3,100, 165 gr. 3,015 & 180 gr. 2,900FPS.
I see loads published all of the time that are not in the major manuals that have the 30-06 a little
faster than most people can expect. Sam Fadala in a recent Gun Digest shows the 30-06 running nearly 3,000 with a 180, a little optimistic for most '06 guns, but hey it was published.
I have also seen 2,800 with the 30 cal. 200 gr. but I don't believe it is doable in the std 06' rifle
& like your 2,700FPS/200 gr 8mm load a little optimistic.
Sometimes we get a good gun like Drilling man mentioned & we get good velocities, as he stated, 2,600 was near max, if 2,600 was near max, 2700 would be over. I have an '06 with just a 22" tube that I can load right up there with the Hor. light mag., but it is not the norm.
Like I said before the 8mm is a fine round & like someone said you can use it for Moose, Elk, Bear
whatever in North America. But to run with an '06 you need a bigger gas tank period.