OK, lets get back to the reason I posted this, they didn't open up. I'm not arguing that a better broadhead would have killed the deer. He didn't make a great shot and it probably wouldn't have. But what if he had made a nice shot? They still wouldn't have opened up. This is what I originaly meant to get at.

And his setup has plenty of energy. Mathews Feathermax 72# draw. Not sure of the arrow grain but they are Lites. I'd guess around 400gr.