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  1. #1
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    Question how long co2

    how long can/should you leave a co2 cartridge in a pistol?

  2. #2
    harvey_s's Avatar
    harvey_s is offline Lost love child of David Niven and Victoria Beckham
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    Now I always thought leaving them for any length of time was best done un-pressurised.

    However, since owning a Crosman 600 - where a few respected people have informed me that the gun is best preserved when left pressurised, I have good reason to query my own previously held beliefs...

  3. #3
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    I always leave them in on every gun I own, I've never replaced a seal.

    I have 22 CO2 Pistols, some well into their second decade of use, I had more and some older ones but some were sold on and my Original Umarex PPK/S recently gave up due to metal fatigue in the frame, the seal was still fine and spent most of it's life with a CO2 bulb pressed up against it.

    I am sure that most of the CO2 eventually will leak out, but my view is that constantly removing CO2 does far more damage to the seal that leaving it in. This is far worse when there is even a small amount of gas left in the bulb, removing the bulb releases the pressure making the seal expand, the escaping gas freezes the seal causing the seal to try and contract because of the lower temperature. Mechanical expansion and contraction due to temperature drop happening at the same time is what messes seals up.

    Others may disagree, these are my observations of the many guns I have owned since CO2 came off ticket.
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  4. #4
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    I guess owning 22 pistols and no problem with the cartridges left in is good enough for me. thanks for the reply

  5. #5
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    If the co2 capsule empties into a pressure tube I leave it in.
    If the co2 capsule presses on a seal eg Umarex I don't.

    Seems to work.

  6. #6
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    My brother recently bought an Umarex S&W revolver off my dad and he had left a co2 cartridge in there for what must have been 6-8 years and it still seals perfectly well. I dont see how you could possibly damage a rubber seal by leaving a cart in there.

  7. #7
    harvey_s's Avatar
    harvey_s is offline Lost love child of David Niven and Victoria Beckham
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    Quote Originally Posted by gingernut View Post
    If the co2 capsule empties into a pressure tube I leave it in.
    If the co2 capsule presses on a seal eg Umarex I don't.

    Seems to work.
    This seems very logical and is probably the best answer.

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