Tennis balls are too light and fuzzy. There are some local gourds that are the right size do great and fly lights out when properly fitted and punched with 80 PSI. Will see what other damage can be done as time permits.

Pumpkins will take a slightly larger barrel than is currently available.

The fiberglass pipe used for the gun was salvaged from a 30' joint that was damaged in the middle. This particular piece was made to a construction that rated it at 500 PSI working pressure. Typically, this product has a 2-2.5 safety factor, so the burst pressure for the material would be 1000-1250 ...

I delivered the gun this past weekend, so all the other doors and windows on the house are safe. I however, have been placed on double secret probation by my wife (much to my daughter's delight).

I’m inclined to post information on my summer project, as the information on this site was invaluable to me in its construction.

This beast was built for my relative who operates a corn maze each fall.
He found a web site selling “Corn Cannons” to launch ears of corn or small gourds using ...