I can't really think of a reason why the piston returns to the original position!! any ideas?? I made a transparent QEV coaxial cannon out of the preform of a bottle. This was inspired by a Nighthawkinlight's project, although I added a transparent barrel and had to make everything work with a wooden piston and o-ring seal. The breech seal is just a piece of rubber from the inner tube of a bike tire. Thanks for watching!

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http://www.sailingeurope.com Footage of Ganges, a Beneteau Oceanis 50 family sailing yacht, one of the four boats we used on our annual SailingEurope teambuilding trip in 2012 in the Adriatic, Split area. Oceanis 50 is a very stable and comfortable yacht, perfectly suitable for bigger groups eager on experiencing a magnificent sailing vacation. Learn more about Beneteau Oceanis 50 Family: http://www.sailingeurope.com/en/yacht-catalogue/sailing-yachts/4/251/beneteau/oceanis-50-family Find out more about sailing opportunities in the vicinity of Split, Croatia: http://www.ayachtchartersplit.com/en/home

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https://www.rocktheboat.co.nz/

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