12oz C02 tanks

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  • DiamondDave
    Rockin and Cockin
    • Dec 2021
    • 68
    • CT

    #1

    12oz C02 tanks

    I have two old 12oz tanks. Been sitting mostly full for I don’t know, 20 years? Were the 12ozers exempt? At any rate I want to empty them. I’d like to shoot them empty but not sure if the contents would be rusty, crusty or otherwise too dirty to put through a marker at this point. What do y’all think?
  • Jonnydread
    Wild Card
    • Jul 2020
    • 4388
    • Lil Rhody

    #2
    If the OD is under 2" they should be exempt.
    💀 PK x Ragnastock 💀

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    • Grendel
      MCB Member
      • Jul 2020
      • 1979
      • Lexington, SC

      #3
      I doubt they are any good anymore. All of the 12 oz bottles I've seen/used have an outside diameter of >2 inches so not exempt.

      If the are aluminum 12 oz bottles there shouldn't be any corrosion/dirt to worry about more then what they were filled with.


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      • XEMON
        Frenchy is here!
        • Jul 2020
        • 3029
        • Nor Cal

        #4
        Are they steel or aluminum? (a picture with a stamping on the shoulder would help)
        you can always add an in-line filter to the gun if you're worried about it.

        I would drain them and do visual inspection fo the inside if you know what to look for. Next step would be hydrotesting/x-day/ultrasound for crack detection.
        If you're really worried about it, don't use them ... stay safe.
        Love my brass ... Love my SSR ... Hard choices ...

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        • SignOfZeta
          Space Commie
          • Jul 2020
          • 576
          • Ann Arbor

          #5
          I’d use them to target practice with all my junk paint and then chuck them in the bin. New ones are roughly $34 shipped (quick eBay check).

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          • DiamondDave
            Rockin and Cockin
            • Dec 2021
            • 68
            • CT

            #6
            They are chromoly afaik. I don’t have any attachment. They have sat since I got my first HPA tank. I just really wanted to know if there was harm in emptying them through a gun in the backyard before I dispose of them.

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