Quote Originally Posted by PanzerJaeger View Post
I have not hunted with a crossbow, but it is essentially a compound bow tilted to the side with a stock added. It is powerful enough to hunt pretty much anything that will not hunt you back (I wouldn't go out after bear or anything dangerous without a backup firearm and preferably a partner), so it would be plenty powerful to destroy a rabbit. As a bonus, it would also serve as a limited home defense weapon, considering the restrictive gun laws you seem to be under.

Again though, you will not be able to hit a running rabbit with it, and I've never experienced rabbits that are approachable in the wild. They are far more perceptive to dangers than deer and other game animals around here. But if they are different over there as you say, then have fun! (Also check your local laws to make sure you can hunt such small game with a crossbow. Just because it is legal to own doesn't mean you can hunt all game animals with it.)
Our rabbits are ijjits, deers are really cautious