 |  | | | |  | |  |  | Dry ice in airgun use |  | |  |  | |
 Posted: Fri Sep 24, 2010 5:02 pm |
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| dobiman |
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| Location: Gil's Isle, USA |
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| Just thought I'd bring this subject up for you guys to consider. A friend of mine who visits the Philippines told me there are people there that makes airguns using dry ice as the CO2 source. Yes, there have been cases where the airguns have blown up. But I suppose after so many years, they have solved their problems. I haven't seen any of these airguns yet, maybe those who have can chime in. |
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| Posted: Fri Sep 24, 2010 6:45 pm |
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| mneumiller |
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One would think that would be quite dangerous. As the ice 'melts' into gas, how would you control the pressure created? And all the problems that come along with things being cold - brittle metal and seals, lubes getting thicker, etc.
And loading the ice into them can't be terribly safe either.
I'm not saying its a bad idea, just maybe not the safest. |
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| Posted: Sat Sep 25, 2010 5:22 am |
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| broommaster2000 |
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| Why come up with something like that when you can just have compressed air. |
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| Posted: Sat Sep 25, 2010 6:36 am |
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| AirGunEric |
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I would think that if the 'dry ice' is pure Co2 and is put in a reservoir set-up properly for the airgun, as long as it is weighed (just like liquid Co2) prior to loading it in, it would probably be ok. This assumes of course that somehow the weight doesn't change when it's solid vs. liquid.
The question is, of course, Why do it? |
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| Posted: Sat Sep 25, 2010 6:57 am |
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| mneumiller |
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| broommaster2000 wrote: |
| Why come up with something like that when you can just have compressed air. |
I think, if it is as hot in the Phillipines as it was in Iraq, that they may have this stuff readily available. All of the locals in Iraq had blocks and bags of ice with them all the time in coolers to keep things cold. Its possible that, if the climate is similar, and with the Phillipines being a little more advanced and wealthy (on the whole as a country) that they would do the same but carrying dry ice instead. It would be a more effective means of keeping things cold, as it is a colder ice. I believe about the only place stateside you will find it, outside of a lab, is at the grocery store. I was once told produce or freezer goods or something along those lines was packed in dry ice to keep it cold/fresh. |
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| Posted: Sat Sep 25, 2010 8:30 am |
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| broommaster2000 |
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Wouldn't it be easyer to just get a PCP and a pump/compressor/diving shop?
Or just get a CO2 gun and a Paintball Filling station. Those things prove to work. |
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| Posted: Sat Sep 25, 2010 12:41 pm |
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| fritz |
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_________________
"I never set out to be wierd, it was always everyone else who called me it" -Frank Zappa
Speed is impressive, accuracy is deadly.
It's not that I'm not a people person, it's just that I'm not a stupid people person. |
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| Posted: Sat Sep 25, 2010 1:58 pm |
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| dobiman |
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Ok guys, these dry ice airguns were being made before any of the PCP airguns came out. First time I heard of them was in 1987. I remember an article about one in an airgun magazine and it looked like an oversized copy of a Crosman CO2 air pistol.Not sure about the calibers. My friend who visited one of these small shops that made them said they were all handmade and varied in sizes. They were used for hunting monkeys, thus were called "monkey guns". Materials used were whatever they could find, and the makers themselves admitted to blow ups on some. Seems like dry ice is readily available in the Philippines.
If you can find dry ice locally, I suppose it is possible to make an airgun cylinder to use it. But at your own risk.
There is a Philippine airgun site on the web, but it doesn't mention these airguns. They are now into PCPs and springers.
Edit:
I just happened across this interesting article on LD airguns:
https://store.bluebookinc.com/InstantAccess/Model.aspx?product=4&id=357 |
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