GUN .22LR in .22 mag derringer?

Discussion in 'On Topic' started by JaimeZX, Feb 18, 2007.

  1. JaimeZX

    JaimeZX Formerly of :Sep 2001: fame - Also: Sprout Crew OT Supporter

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    Hay guys. Just curious what your thoughts were. My dad has a little single-shot/double-barreled derringer in .22 magnum. (So it works like a tiny superposed shotgun, KWIM?)

    Anyway, for some reason years ago I thought he said it was unsafe to shoot just a regular .22lr in it, perhaps because the chamber is throated for .22 mag.

    What are y'all's thoughts on the subject? :dunno:
     
  2. Ludeykrus

    Ludeykrus New Member

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    Well revolvers have different cylinders for .22lr/.22mag and I remember hearing that the .22lr cartridge is a good bit smaller than the .22mag, even though it's the same caliber.

    My vote is don't do it, but I don't have any other experience with it.
     
  3. idleprocess

    idleprocess Bring a dollar with you baby in the cold cold grou

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    The .22WMR cartridge is larger in diameter than the .22LR.

    From Wikipedia:
    I screwed up once at the range and fired a full cylinder of 22 longs through the 22 mag cylinder in a Ruger Single Six. Nothing dramatic happened save for one ruptured 22 long case, difficuly extracting the remaining cases, and greater than usual lead fouling in the barrell come cleaning time. There could have been a much more dramatic failure, of course.

    So ... just don't do it. I was lucky that a ruptured casing is all I had to deal with. No evidence of other damage to the revolver. Dunno what a ruptured casing or slightly off-center bullet will do to a Derringer as opposed to the overbuilt Ruger Single Six.
     
  4. JaimeZX

    JaimeZX Formerly of :Sep 2001: fame - Also: Sprout Crew OT Supporter

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    Gotcha. Didn't realize the diameter of the cartridge was larger.

    My buddy used to have a SWEET .22 mag rifle but he sold it for some reason and now I always give him shit for it because he regrets it like crazy.
     
  5. PanzerAce

    PanzerAce Active Member

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    That wiki article should be modified, was 17HMR introduced pre y2k?
     
  6. idleprocess

    idleprocess Bring a dollar with you baby in the cold cold grou

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    The diameter difference is small - tens of mils at the most - but signifigant enough.

    22mag is a bit spendy for rimfire - usually costs more for 50 than 9mm or .40S&W. Otherwise it's far more satisfying to shoot than .22LR for some reason.
     
  7. JaimeZX

    JaimeZX Formerly of :Sep 2001: fame - Also: Sprout Crew OT Supporter

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    Dood I wish Ben still had that rifle. I would totally buy it off him. It was a little tack-driver. :cool:
     

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