Does a longer barrel add distance ?

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
worldburrito45
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Wed Feb 08, 2012 7:29 pm

I built a cannon it's got 4 and a half feet of 3 inch reduced to 2 inch then reduced to 1 inch then a 1 inch ball valve then 1 inch increased to two inch increased to 3 to about 6 inches of 3 inch barrel if I were to make it a 2 and a half foot barrel would it make it shoot further? Preciate it. Jack
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mobile chernobyl
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Wed Feb 08, 2012 8:39 pm

Yes,

Barrel length increases the distance... That the ammo has to travel before it leaves the barrel.

My reccomendation is to use the spudfiles search for the term GGDT to familiarize yourself with the gas gun design tool. This is a great program for beginners to get used to optimization of their pneumatic spudgun!
Hawkeye
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Wed Feb 08, 2012 9:43 pm

Still a balance between the increased time the ammo is pushed by the air versus overcoming the frictio of the barrel.
worldburrito45
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Wed Feb 08, 2012 10:41 pm

where can i find the GGDT i tried searching it
Proxywars
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Wed Feb 08, 2012 10:45 pm

It is the first hing to popup on google. Google found it in (0.09 seconds) as did I. Image
worldburrito45
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Wed Feb 08, 2012 11:50 pm

ya i downloaded it but it says error '339':

component 'MSCHRT20.0CX' or one of its dependencies not correctly registered: a file is missing or invalid

no idea what this means
worldburrito45
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Wed Feb 08, 2012 11:51 pm

also what are spud bux sorry im a noob
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mobile chernobyl
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Thu Feb 09, 2012 12:00 am

Mac? Windows? if Windows... windows vista/7? if so you'll need to right click on the .exe file and click run in compatibility mode.
worldburrito45
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Thu Feb 09, 2012 12:02 am

there is no .exe file
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mobile chernobyl
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Thu Feb 09, 2012 12:16 am

Image

But there is an application file named ggdt4.6 or something of the like - do what I said with that.
worldburrito45
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Thu Feb 09, 2012 12:29 am

Ok thanks I really appreciate it. I'm not the best with computer things
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Crna Legija
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Thu Feb 09, 2012 4:41 am

worldburrito45 wrote:Ok thanks I really appreciate it. I'm not the best with computer things
before you ask their are instructions on how to use it on the GGDT web page.
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mattyzip77
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Sat Feb 11, 2012 2:29 pm

You have to run ggdt as a administrator or it will not work
Go Bruins!!!!
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