Regarding ELDX in general, I think a safe rule of thumb is that if the shot is less than 200 yards, yell "frag out!" before you pull the trigger and everything will be fine. Past that, it is business as usual.
I decided on not using these bullets on anything bigger than deer sized game a long time ago. For me anyway I feel there are better bullets out there for elk sized game. It's nice to have a wide variety of ammo and bullets to use on different hunts as in different variables.