Ammo was old and tired apples. Targets were foam core board. Plywood contained the resulting apple sauce.

I'm certain it does. By pure logic, the blowgun valve opens faster, so pressure release from the from the sprinkler valve happens faster, and so on.

Is it measurable better? Probably not.

[youtube]http://www.youtube.com/watch?v=aXy6kXAYDtc[/youtube]

2" Pneumatic blowgun modified sprinkler valve. I'm shooting the plain white one and that's a regular 3x9v battery sprinkler based gun. The orange/green one uses a spring loaded latch based trigger that slams the blowgun button.

Sharing ...

Hi, I cannot see your images, they look like blue dashes in the post.

Anyway, let's say the spring side of the diaphram is the top, and the chamber and barrel ports are on the bottom. On 1" valves, the solenoid is on top, with the pilot and junk. In your mod, does the blowgun
vent the top of the ...

Hi, I gave one to a friend for his 40th bday. A modded valve would
probably help, as the solenoid approach seems to require a sizeable
volume between the exit port of the valve and the ammo.
Using Alpha-Alpha depleted alkaline mutions leaves little room to
vent the valve.

The valve flutters. :x ...

Really goes through batteries, er... I mean batteries really go through things.

1/2" Cu coupler
1/2" Cu pipe
1/2" brass sweat to npt
1/2" to 1" Fe reducer
1" Solenoid valve
1" Fe close nipple
1" PVC Female npt to glue elbow
1" PVC thick wall pipe, rated 480 psi
(2) 1" PVC 45 degree couplers
1" PVC ...