I read the article in bowhunter and it said on a ELK this was a very good shot, several people with experience with elk say its a good shot. there's a huge difference between an elk and deer in the size of this kill zone. Supposedly its a 6 inch circle. If you get the arrow into the body at that angle in that circle you will take out:

- heart or arteries coming out of heart, ie ALOT of blood pouring out and quick death
- 1 lung
- liver
- guts (if you go that far)

Not sure if I would take it on an elk, I have talked with a couple outfitters and the recommendations go both ways.