What rifles do yo have already? I only ask, because every year we get guys show up in our Elk camps from back east, with brand new rifles that they aren't familiar with. I've seen it cost guys an Elk many times, if you already have something you kill Deer with, say .270 or larger, considering using that instead.
Ok, with that out of the way.... I'd look at the Ridgeline, instead of the Mesa LR, if you like the Christensen rifles. That's a 10lb bare rifle, the Ridgleline will save you 3 lbs right off the bat.