What is the twist rate of your barrel? There are other options if you have a 1-7 or a 1-7.5 twist and you hand load.
Also, what range are you looking to kill an elk? The 127 LRX is plenty to kill under 600 yards and the wind drift @ 600 yard with 10 mph wind is only 4" more than the 140 bergers EH i shoot. (my LRX accuracy node is just north of 3200 fps)
At "real" hunting ranges the BC of the LRX is plenty.
However, if you did have a faster twist barrel I would consider the 131 or 139 hammer hunters.
My recommendation is the grab the hammers or the LRX and don't over think it. They will do an excellent job.
If you really want to increase your BC, check out federals ascent bullet. They are bonded lead with a copper shank which increase the BC will allowing part of it to remain in-tact.
Shopping for the Terminal Ascent Component Bullet, .264, 130 Grain - Learn more about the latest Terminal Ascent Component Bullet and other hunting or shooting gear at Federal Ammunition.
www.federalpremium.com