In WWII the British SOE (Special Operations Executive) had an array of expieremental weapons. one of which was a crossbow. The crossbow didnt use the force of the bend of the bow to push the bolt, but used rubber bands wrapped around the fireing mechanism. i'll post some pics later if i remember. or you could look for yourself in the section all about SOE agents in the book, Warrior, a visual history of the fighting man by R.G. Grant. Thats where i found it.
