Elk tend to be tenacious of life. The 30-06 is capable of taking an Elk at 400 yards, but as has
been already stated, there are better chamberings for the task.
I have shot many Elk, but only about 4 that were out at that distance or a bit farther. In all of
the long distance shots, it was impossible to get closer without spooking the animals.
All those shots were taken with either my 308 Norma Magnum or my 8mm Remington Magnum.
Just to compare the trajectories, if you were to sight your 30-06 +3" at 100, you will be down
approximately 18" at 400 The 308 Norma so sighted will only be down about 8.5"
The magnum also arrives with substantially more "Thump". If you are using your 30-06
for the 400 yard Elk shot, you need to know your rifle and load intimately. You also must be able
to exercise patience to get a good presentation....no "iffy" shots should be contemplated.
A steady rest is mandatory. Dave.