My uncle has taken several elk with game kings in the 180 gr. from his 30-06, but none of them went all the way through. Those bullets just don't hold together worth beans. That said, I would recommend trying a different load too, like Stubblejumper said. I've seen them work, but I was not impressed by the bullet when we recovered them. Will they work, yes, BUT, there are better choices. Also, non of the elk that my uncle shot were over 250 yrds., so longer range shots, they may not work as well.