I've shot 3 elk with the 165-.284 version, along with several deer. Elk harvested ranged from 80 yards to 380. Recovered the bullet from the farthest elk. If memory serves it weighed around 110 grains. I really like the bullet so far. From my limited experience i'd say a bit tougher than the 162 eld x which is the only other c/c .284 I've used in recent years out of the rifle. I really like them so far.
