SpudFiles

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

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!

Still a balance between the increased time the ammo is pushed by the air versus overcoming the frictio of the barrel.

where can i find the GGDT i tried searching it

It is the first hing to popup on google. Google found it in (0.09 seconds) as did I.

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

also what are spud bux sorry im a noob

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.

there is no .exe file

But there is an application file named ggdt4.6 or something of the like - do what I said with that.

Ok thanks I really appreciate it. I'm not the best with computer things

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.

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