John Maynard has killed some elk
with a bow. Read his comments
about broadheads on this link.

http://www.bowhunting.net/huntwest/9...heads4Elk.html

I use SteelForce broadheads. When I was setting
up my bow with them and had shot through a foam target
15 times with one head, it would still shave.

I agree with previous post. The G5 is a very strong
design. You should be able to get it sharp by honing
it on a diamond plate or arkansas stone. The 60 degree
edge allows you to simply push it on a flat hone. Get
it sharp and I'm sure it will do the job.

dxr