Potato Cannons!

When visiting Erica and Ryan for Independence day, I built them a potato cannon.  At the holiday festivities we fired it at effigies of the IRS, FED, and NSA.  That got me hooked on these spud guns. Since then I have built several combustion type guns and a propane metering device.  Next I started experimenting with compressed air cannons.  The results have been good with those.  Much better range and reliability result from the change.

I'll have to post some pictures later along with more specifics about the cannons.

I did a couple Blog posts on my adventures: