With the 6.5 creedmoor, keep in mind that Hornady is currently the only one making factory ammo as far as I know. I wouldnt say that its super hard to find, but availability can be spotty with it.
120 gr .25-06 ammo is everywhere and made by everybody so it should be a little easier to find. I shoot Federal Fusion 120's in my .25-06 for whitetails, but I'd say it would make a dandy elk load as well, and its under $30 a box.
Blessed be the Lord my strength which teacheth my hands to war, and my fingers to fight -Psalm 144:1, KJV, a Psalm of David