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  1. #1
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    Is this a Recoilless rifle cartridge?

    Just wondering if anyone can help identify this object found on the bottom of a harbour in New Zealand this week. I am thinking it might be some type of recoilless rifle cartridge perhaps, with what look like vents at the rear?

    Cheers

    36025782_1825438357523052_4726543915052695552_n.jpg36316752_1825438350856386_6314143013689884672_n.jpg36222935_1825438320856389_2247819942369951744_n.jpg36233930_1825438287523059_8405038032318627840_n.jpg

  2. #2
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    It definitely looks like a Recoilless case.
    ___HAZ/
    _____/ORD Hazardous Ordnance Recognition
    ________Saving Lives Through Education

  3. #3
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    Quote Originally Posted by HAZORD View Post
    It definitely looks like a Recoilless case.
    Thanks. Next challenge is to see if anyone knows what particular RR it might be from! I know the British 120mm BAT had a rear vented case, rather than a side perforated case like most RRs, but its too small for that. looks like about 75mm or so from the ruler.

    Cheers

  4. #4
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    It may have something to do with a fire extinguisher like a refill unit, seen this before.

  5. #5
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    Quote Originally Posted by BMG50 View Post
    It may have something to do with a fire extinguisher like a refill unit, seen this before.
    It looks familiar to me (ex field artillery gunner some decades ago) too, as though l've seen it before, but I can't place it.

  6. #6
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    http://safety108.blogspot.com/2011/0...nguishers.html

    Chemical foam fire extinguisher inner cartridge.

    Last edited by kahu1; 5th July 2018 at 10:03 AM.

  7. #7
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    This looks like a CO2 cartridge for a gas/water fire extinguisher. After use, just refill with water, pop a fresh gas cartridge in, screw the top on and off you go.
    gravelbelly

  8. #8
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    They came i believe in a rack of three.

  9. #9
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    "This extinguisher has a cylindrical outer container made of best sheet of steel of 1.25 mm thickness with lead coating inside. This is tested at 25 kg/cm2 hydraulic pressure for 5 minutes. A partly channeled spindle passes through the centre of brass cap. The one end of the spindle carries a sealing disc which closes the inner container; the other end is connected to a "T" handle. When this handle is pulled up it opens the seal of the inner container. The inner container is made of sheet of copper and its capacity is 1 liter. This con*tainer rests inside the outer container duly supported at the neck of the extinguisher. There are holes on the top of the inner vessel so that once the "T" handle is lifted up and extinguisher turned upside down the contents will readily mix with the contents of the outer vessel.
    A nozzle is provided at the cap of the extinguisher. The handle is also provided at the P-The outer vessel contains 7.8 liters of 8% solution of Sodium bicarbonate while the ner vessel contains 1 liter of 13% aluminium sulphate solution."

  10. #10
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    chemical foam

    chemical foam extinguisher.JPG

    Image from linked site, showing inner 'cartridge'.

 

 

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