Scope is not an item that will be perfect for all situations.
If hunting open country exclusively, what you have is fine. If hunting thick timber, a minimum power of no more than 3.5x or 4x is much better (and 2x better yet) as elk hunters will often have about 3 seconds to get a shot off in the timber.
I concur that your zero should be 200 yards as this will allow you to hold dead on from point-blank to 250 yards.
I saw a 160 grain Accubond fired from a 7mm Rem mag cartridge FAIL on a shoulder shot elk. Elk was shot at 7 yards (yes, 27 feet) & the bullet didn't make it through the shoulder. Thankfully, the first shot went behind the shoulder & into the lungs! These may be great deer bullets, but I'll never trust them on a trophy elk