If you are going to do this shot, the bullet to use is the Barnes X. It seems to be particularly deadly on the end-for-end shot - either coming or going. And not overly messy, either. Shot one about four years ago looking right at me with a 6MM-284 and a 95 gr. Barnes X. Dropped in his tracks. Found bullet in his hip. Minimal meat damage. Also shot a very good buck walking away from me with the same load in 2003. Also dropped in his tracks. Found bullet in the throat.