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Posted: 12/1/2006 2:25:16 AM EDT
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OK, I'm just kind of blue-skying here, but would there be any benfit to purging a can with steady, low flow CO2? Assuming sub-sonic ammo, could you contain even more blast noise by doing so? I know this isn't ideal or convenient, but I was just imagining a rail mounted CO2 cartridge and regulator on a suppressed .22 pistol.  or have we reached a kind of "Peak Suppression"? Barring media environments or large unwieldy set-ups, do you think it can/will ever go quieter? |
| hello. you might gain a little more suppression, but not much. you must remember that most name brand 22 cans are as quiet as they are going to get. most of the noise you are hearing is the action of the gun. the action itself in most cases is louder than the actuall shot. take a 22 can from your pistol and put it on a 22 bolt action rifle and you will see what i mean. all you hear is a little pppffffttt!!. i am sure manufacturers will still change baffles and designs to keep buying their products, but the good cans have pretty much reached their maximum performance. kirk |
Very interesting idea. Probably not worth the trouble, but interesting non the less. I have blown a little CO2/Argon into mine just before shooting as an experiment and I guess it may have taken away a little of the 1st round pop but I don't want to carry my MIG welding outfit with me everywhere. It really wasn't worth the trouble. Now to have it constantly flowing in could change the turbulence pattern in the can and make the bullet path very unstable but that's just a guess. (hey, maybe that big bottle of O2 and a little Acetylene would work!!!....no, maybe not a good idea  ) |
Actually, I thought of that as well. I used to have a big NO2 tank laying around when I played paintball but I traded it in for my O2/Acetylene tanks. I bet NO2 would work really well. You would not have the temp effects as you would with the cold CO2. CO2 would bring the metal to a VERY cold temp and then shooting would quickly warm it. After a while, this would stress the metal of the can. I guess, I don't know, I'm only guessing. Educated guesses, but guesses non the less. purging a can with today's technology is probably senseless, but it is definately cool to think about. The only likely benefit would be less first round pop. |
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Uhhhhhhhhhhhhh NO2 is nitrous oxide which has a greater oxygen content than air so it would enhance noise. You are thinking of N2, which is gaseous nitrogen. As to the cooling effect, compressed N2 would be just as cold as compressed CO2. It isn't the gas that determins the cooling effect, it is the sudden expansion of compressed that causes the cooling effect. It happens with all compressed gases. |
  oops, I'm not a scientist/chemist. I was thinking of my paintball days. I used to used compressed Nitrogen instead of compressed air (scuba tanks). We used to use compressed nitrogen in our paintball guns because it was cheaper than buying scuba tanks. Anyway, compressed Nitrogen would NOT be colder. That's why we used it in paintball. It was not much different than using compressed air (scuba tanks) but it was cheaper. CO2 freezes as it is released, compressed nitrogen does not. Compressed nitrogen is just like using compressed air, you just can only get tanks filled at around 2Kpsi instead of much more for compressed air. |
Uhhhhhhhhhhhh Nitrous Oxide is N2O... |
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