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Any people with copper barrels

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Any people with copper barrels

Unread postAuthor: jsefcik » Sun Jul 17, 2011 12:07 am

If you have a copper barrel and you are using 1/2 inch, I found a new ammo you can use and fits great =)

Use double A batteries, my little brother found out by just trying it. He was able to launch them things out of site. =)
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Unread postAuthor: Technician1002 » Sun Jul 17, 2011 12:27 am

I had better performance shooting them out of a 2.5 inch barrel in a sabot. They flatten much more when shot against a steel plate. The acceleration is much higher.
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Unread postAuthor: jsefcik » Sun Jul 17, 2011 12:29 am

Is that styrofoam? With the battery in the middle ?
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Unread postAuthor: daniel0663 » Sun Jul 17, 2011 12:37 am

Tech - That's impressive battery pancake, did you use your QDV to achieve this? if so what was the operating pressure?
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Unread postAuthor: jackssmirkingrevenge » Sun Jul 17, 2011 1:04 am

jsefcik wrote:Is that styrofoam? With the battery in the middle ?


... and PET bottle support, otherwise the foam will collapse.
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Unread postAuthor: jsefcik » Sun Jul 17, 2011 1:07 am

@ jackass, what PET bottle support, it looks clearly like styrofoam
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Unread postAuthor: jackssmirkingrevenge » Sun Jul 17, 2011 1:11 am

jsefcik wrote:@ jackass, what PET bottle support, it looks clearly like styrofoam


You're right, my bad :P ;)

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Unread postAuthor: Technician1002 » Sun Jul 17, 2011 1:23 am

70 PSI, 2 inch QDV. 3 Gallon Air Chamber. Swim noodle. Water bottle.
http://www.spudfiles.com/forums/flat-aa-battery-i-challenge-some1-to-replicate-this-video-t21827.html
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