I got one large doe last year with a Horton summit 150# crossbow with carbon bolts topped with Rage double bladed mechanical broadheads at about 30 yards. Got both lungs, and the bolt protruded through the other side of the deer but it didn't fall out until she ran about 100 yards. The blood trail wasn't great, but it was enough that I recovered the deer a short time later. I would have no problem using them again if I had to, but this year I'm going with a fixed blade broadhead.

Rage mechanical broadheads are fine, but not worth the price tag in my opinion.