hey moose hunter, i live in bc too, and all i use is 180 gr bullets, they have worked last three year for me, i got a calf 2 yrs ago, i did hit it in the shoulder and it made a little bigger exit hole, a little meat was wasted but not much by any means, like moose slayer said "try" not to hit it in the shoulder and you will be fine, but i would stick with the 180 bullets.