[jacqlecl772]

well my team original idea was to use pneumatic but we simply could not get the piston to extend fast enough to push the ball far enough. We even called are pneumatic guy to ask him if he had any cylinders that could open with such speed and force but he told us that he could not think of any way to do it. So i would say that to my knowledge there is no way of using pneumatic to shoot the ball in to the high goal, however it may be possible in the low goal.

Your best bet is to prototype some different shooters and pick the best one !