Interesting. They've obviously flipped the risers and limbs around from their usual placement, which I'[m sure has something to do with the increased power stroke. I'll have to read up a little more on it. Nice to see some innovation in the crossbow arena. Thanks for posting this.
Another Excal fan eh? They have a very loyal following with good reason.
- No, I havent. Great idea though. There is a small plastic piece you can buy that allows you to shoot ballbearings with it. PSE has an arrowgun they licenced off the inventor for archerybows letting you shoot ball bearings also. Retails for about 40-50 Euro I think. Maybe your forcing cone and rifled barrel idea might suit it. PSE also owns Bowtech.
If you like the tech but not the price, check out the Horton Vision 175 and Recon 175.
Alternately there is a very similar design in an archery bow, smaller and less powerful. Thought it might make a great slingshot or more properly termed - a catapult.
Try googling reverse energy bow....
heres another site of unusual weaponry you all might enjoy!: http://sinza.forumotion.com/forum.htm scroll down to exotic weapons. I expect my ballista to be featured here when finished. I found this by backtracking a link to my blog. (both sites)
Unusual weapons is where I will end up I guess LOL. Collector items and curiousities.