hey steve, do you have any pictures you could post of the gun. i have been thinking of making one in the past year, but never got to it. i am still debating on whether to use co2, hairspray, or black powder to propell it. did you use a reducer to join the 8inch to the barrel?

my friend has a pvc potato gun. it will shoot a tater about 200 yards. the most memorable time with it was when he stuffed it with horse crap and then topped it off with pea gravel. there was an old chevy truck that he used for parts. we held the gun about 20 feet from the side passenger window and let the crap fly. the gravel blew out the window, but failed to bust the other.