double lung elk... don't typically make it very far! I shoot 150gr bullets out of my 270, and I have never needed to follow a blood trail, they all died quickly.
There are elk there, but the country is BRUTAL. Be ready for lots and lots of dark timber and steep country. As other have said be very prepared for bears. I have hunted more of 520 and eventually was successful, but it came after years of work and in the end, I literally ran into a heard of elk...
Are you interested in a set of Cabelas Instinct Euro HD's 15x56 (Meopta's). I have a pair that I barely used last year and still have the box and all accessories. Considering selling them... shoot me an offer. I will also shoot you a PM.