Making a 330+ Joule Air Cannon 

Sounds cool, definetly gonna try to get my hands on that book!

@@Mika_357 The Weaponeer is a more useful book, by the same guy, Kurt Saxon. Now days, having it will probably get you put on a list. 40yrs ago, it was a cool book of improvised devices. Anyway, stay safe!

High pressure injuries?!

@@johnshipley1389 Hi ! Yes, It is just a piece of brass with a rubber o- ring that can shoot out like a bullet !

Thank you! It was very fun!

I usually pump it up with my shop compressor which goes to about 9 bars. I only use the bicycle pump for pressurizing it to 13 bars afterwards, but even that sure is a good workout ;D. Whether a golfball will fit depends on the barrel you're using. But with the pipe I used it actually fits!

After a bit of searching in the long grass I eventually found it, yess!

seen one in the workshop doh

I did 13 Bars wich is around 190psi, this was the maximum I was comfortable with

@@Mika_357 Thanks for the quick reply. I'm building one of these out of a small oxygen tank from a cutting torch. It should handle 200psi with no problem, if yours held 190. Thanks again!

My pleasure! In my case I was concerned about the car tire valve, it was only Rates for 10 bar max.(145psi)

Yup it‘s a Tire valve!

Yes, I am!🇩🇪

@@Mika_357 Haha same