i like permatex cold weld compund, it is like jb weld but gets gummy quickly so you can shape it and smooth it so it doesnt look messy, i've fixed a few leaks with it, i like it better than jb

look, i'm not here to argue about the performance of the cannon i already have, and i dont really care whether people beleive me on how it performs.
(and yes i meant yards, not feet) the point of this thread was to toss around the idea of the triple valve idea and to see what input i could get.
i'm ...

I have to admit i havent measured the distances, but i know i am getting well past 1000 yards with shaped and saboted projectiles, this is aiming at about 45 degrees up from a slightly elevated location. not all projectiles fly that far,
if they tumble whatsoever they wont go as far, and actually i ...

i agree with fireman, you are probably blocking the movement of the diaphragm with you're blowoff. i have the identical valve on my cannon, and it works great as long as pressure is high enough, below 100 psi it doesn't seem to open as fast

i was going to post pics of my idea but i dont have an image hosting site set up.
i like the idea of sprinkler valves because it is what i am familiar with, i built one piston valve before and it didnt work out too well. i have an inline abs pneumatic with a 3/4 inch orbit sprinkler valve rated at ...

I've been toying around with the idea of a new cannon.
I'm thinking about a W shaped compression chamber/base with 3 modded sprinkler valves angled into the barrel, these 3 valves will be connected to a manifold with another sprinkler valve for a blow off. the compression chamber will hold ...

my pneumatic inline cannon has the same diameter barrel as chamber, and can shoot 1000 yards at 150 psi

a piece of ginger root

sorry to offend, it was a feeder that died in the lizards cage, i was going to flush it but....
my cannon was right there

it was already dead

I thoroughly enjoy butt sex!

Incorporate a c02 powerlet in the design, on impact it is pierced and pressurizes the grenade until it bursts.
make the body out of an asswipe tube and duct tape, so that there is no shrapnel.
the c02 burst will actually throw paint well, unlike these piston or burst disk ideas.
by pushing paint ...

The 1/2" groups were fired offhand standing,
the gun is capable of more, but I'm no Carlos Hathcock

This is supposed to be airsoft/bb/pellet discussion, true it is basically all homebuilt here but i feel it is still relevant, I would love to see one of these homemade paintball 'snipers' or bbmgs punch a beercap at 25 yards everytime.
Also i am sure many people here are into air rifles, and given ...

Even simply porting the barrel can silence a cannon alot, 4 rows of 6 inch linear porting on mine works awesome