Cool
I once built two "spud guns" in spare time at sea.
All s/s 3" bore Q D barrel onto about a 30degree taper out to 200ish dia chamber 200ish long fitted with socket to fit standard spark plug.
designed to be fired shoulder mounted with two pistol grips a push button for elec trigger and batt ingnition mounted on chamber.
Hard to find spuds that big but found a frozen orange worked great with a rag as a wad behind it.(had to be frozen or it would disintergrate on leaving the barrel)
About 30 deg up would yield around 500y !(useing proper mix of lpg/oxygen) and make anyone take at least one but usually more steps back after fireing.
One was for my off sider. Mine I gave away for scrap value as I could see myself getting in the shit with it![]()
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