Originally Posted by BGfisher

Something else you might want to consider. Those blades are very sharp and should be for hunting. Any time you shoot them into something it dulls the blades to some extent.

Your responsibility as an ethical hunter would be to either resharpen the blades or replace them for hunting. Replacement is what I always do as that is part of the advantages of having replaceable blade heads. The old blades can then be saved for next year's or any subsequent practice sessions.