Coaxial bb gun

[ckman]

Okay here is my coaxial bb gun
barrel:2 feet of 1/4 brake line
chamber:1 foot of 3/4 sch 80 pvc
exhaust valve:1/4 ball valve
Operating pressure:100-140 psi
piston:1/2 inch copper end cap wrapped in a little bit of tape with two layers of bike inner tube for the sealing face.

There is a slight leak in the barrel witch I need to fix other than that it is very powerful it can shoot straight through a metal zippo lighter fluid can with a .177 metal bb. from about 40 feet away.


Whoops just posted this in the wrong section could a moderator please move this thank you

[VH_man]

Are you sure that leak you were having wasnt the stuff you used to seal your barrel in there?

Otherwise, Nice. any shots of the cannon in its entirety?

[jrrdw]

You gonna seal that barrel from the inside?

[ckman]

yeah im sure because I epoxied all the way around and made sure there were no leaks.


Yea im gonna seal the barrel from the inside

[psycix]

Your epoxy use is... excessive.
Nice gun. Is the barrel perfectly parallel with the chamber?

Kudos on the foot picture though!

[ckman]

yeah the barrel is perfectly parallel with the chamber

Oh yeah thx

[psycix]

Okay good.
Any chance of a vid?

[Sticky_Tape]

I'll dub thee twinkle toe. You gun is ok for a first why not give us a picture of it put together? That SCH 80 looks kind of like steel it is threaded.