Ask 50 people and you'll get 100 opinions.
It's so hard to say what will happen when that bullet strikes. Yes, glance a heavy bone, and you'll get a deflection. 10mm left or right, and you either miss the bone, or hit it square on and break it with authority.
Look ... just think about your shot placement. It's the key with the tools that you've got and keep the shot as close as you can. You don't have enough gun for more than 200m, but the closer you get, the more gun you have.
Anyway .... here's a really excellent resource for planning your shot placement on elk (including skeletal structure):
Elk Anatomy & Shot Placement
I think you've got enough gun for elk, but you don't have much more than enough, so think about your shot placement and get as close as possible.