Pak 38 Potato Cannon

This is a potato cannon I built over the summer. I apologize for some of the video audio, it was very difficult to get my siblings to keep quiet. On the first video clip the piece flying out about 15 feet is the wadding. The ear of corn I fired is the black flash in the upper middle. If you have any questions about how I built it comment below. I have some other projects like this that I can upload if you guys are interested. Thanks!