What in the world do you need that for? Those mechanical blades will look like a slinky after one shot into a heavy bone, dirt, rock or anything else hard. I guess they'd work, but you'll likely not get an exit wound, unless you're shooting a heavy arrow at 295+.

Any hit in the guts/neck/vitals would be fatal, I'd reckon. Again, as with any broadhead, if you hit where you're supposed to, you'll kill it. With these, however, given the size of the six cutting surfaces, I don't think you could pass through a large deer's shoulder blade.

Inever really had any problems (other than poor shooting) with conventional broadheads (muzzy, thunderheads, etc.).Could these be a crutch for a poor shot? Yes. Would I recommend or use them? No.

I've field tested some rockets before, and spined a small buck. At 78#, the tip of the head barely penetrated the spinal column. The blades were completely annihilated. I had one blade left, and it was bent into a curly-q. I wouldn't use any Rocket expandable again, even if they were free (again).