cutting edge new combustion gun design!!!
for some while i have been a spud gun fan and have built only
combustion spud guns, I have been realy diapointed by there weak
preformance. how ever i have come up with an idea to increase the
chamber pressure. if the barrel was recessed till it touches the
clean out plug and the ignition point is moved to the front of the
chamber (closer to the muzzel) it should create more pressure. i
belive that a similar idea is used to shorten a standard rifel and is
called a bull pup design. it is to bad i have to wait to fire till
the pvc cement dries. but tomarow should prove to be interesting.
after all of my vast research i've yet to see such a design in a
combustion spud gun but it is very close to a piston or diaphram
design well got to run but i will hopefull send results tomarrow if
anyone has tried this design before i would like to know.