SpudFiles

You can use propane for airsoft. Every airsoft site shows you how to make an adapter to fill up with propane. Green Gas IS propane.

The SpudWiki page on propane has the pressure versus temperature info. for propane.

I would like to comment on the original topic. Basically the answer is yes, however it would not be a care free system, With dry ice you would need a pressure guage and be able to watch it as it approaches the maximum alotted pressure, then you would have to relieve it. You could solve that with a custom trip valve. A redundant system would be needed, perhaps a burst disk exaust port. So the final thought would be that such a dry ice gun would be expensive, complicated, somewhat dangerous, and scary as hell when the failsafe went off. But, in the end, the gun is doable in a practical manner.

rcman50166 wrote:I would like to comment on the original topic. Basically the answer is yes, however it would not be a care free system, With dry ice you would need a pressure guage and be able to watch it as it approaches the maximum alotted pressure, then you would have to relieve it. You could solve that with a custom trip valve. A redundant system would be needed, perhaps a burst disk exaust port. So the final thought would be that such a dry ice gun would be expensive, complicated, somewhat dangerous, and scary as hell when the failsafe went off. But, in the end, the gun is doable in a practical manner.

The OP has a "pressure releif valve (that lets the pressure only get to a certain level)"

Trying to do it manually while watching a pressure gauge would be suicide.

It wouldn't require a "custom trip valve". A generic safety pressure release, with a suitable pressure rating, would work fine. The pressure relief values used in hot water heaters springs to mind as being about right in terms of pop-off pressure and flow capability.

You would still need to worry about the pop-off freezing, the affect of the extreme cold on the strength of whatever the gun is made out of, etc.

propane as a propellant?

[youtube][/youtube]

yay!

A mouse would've stopped after the first time it caught fire and posed some threat

jackssmirkingrevenge wrote:propane as a propellant?

yay!

The moral is;
1. Don't use it if you are an idiot.
2. Don't use it if you are going to purposely try to light it.
3. Don't do it in a semi- or full-auto.

But other than that it's a great idea.

This has been another episode of entertaining videos by Jack... stayed tuned for Idiots on fire...