Yeah, I doubt I would use the .270 for elk hunting at all. 800 yrds is just the farthest I would feel comfortable shooting in the mountains under ideal conditions on an elk sized target, so just looking for opinions on a round most capable for the job as I wouldn't be carrying two different bullets. My 30-06 is the biggest gun I wish to carry with the most recoil I can deal with while shooting long distances in hunting situations.
I guess part of my thought process is that with the heavy 208 ELD-M, it impacts at 2600-1800 which is only about 800fps difference in roughly 750 yards. I wouldn't really consider 2600fps an explosive speed for a 30cal round as long as the 208 ELD-M is.
For the 270 I see a definite need for a durable bullet, thinking a partition, SST, or Interbond.
The 208 ELD still opens rapidly even at 2600fps. It's an awesome bullet and my favorite .30cal bullet personally. It does a number on deer for sure. I would feel comfortable with a .30-06 loaded with 208s at 2600-2700fps as long as the rifle was obviously accurate and consistent. I would however personally limit myself to 600 yards on elk. I just suggest something along the lines of a .300 Win Mag to get the extra 300fps and gain the extra energy. A standard weight .300 with a good brake recoils less than a .308 and is very controllable.