This was posted in the Bowhunting forum by a entrepreneur with a cool idea. The first part of the link talks about Compound Bows, but the last half is the best. The guy built and modified a Excal to shoot bird shot and six inch darts. The clip is eight minuets, but well worth the download!! This is a must see!!

http://www.youtube.com/watch?v=cn4pAXC-Ilo