I agree with Mudrunner use the Berger 115 VLD.
While I haven't taken elk with the 115 VLD, my friend has taken six with his 257 Weatherby as far out as 600 yards. I realize your 25-06 is slower than the 257 Weatherby. You should get similar performance at closer distances.
John Barsness wrote an article on the 115's performance in New Zealand. Walt Berger shot a red stag with his cooper 257 Roberts @ 2900 fps muzzle velocity:
"The stag stood just under 200
yards away, angling slightly toward
us. The ideal shot would be
tight behind the shoulder. At the
report I saw dust puff about 10
inches behind the shoulder, and
the stag humped up and started
walking very slowly toward the
timber, 70 yards away. Walt's
.257 was a single-shot Cooper
bolt action, so I started to raise
my .30-06. I never even got the
stag in the scope before it fell
dead, about 15 feet from where it
had been shot.
It turned out the bullet had
turned the liver into liver-burger,
then gone on and shredded the
rear half of the lung beyond. Walt
knew it was a "bad" shot and was
ticked at himself, but the stag
died within seconds."
link to article:
http://www.bergerbullets.com/articles/john-barsness-berger-bullets.pdf