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.22 Mag Cylinder?

Discussion in 'Handguns: Revolvers' started by blacktornado, Feb 14, 2011.

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  1. blacktornado

    blacktornado Member

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    All right guys, I searched and searched both here and google and haven't found anything to answer my question. :banghead: Now I may be blind, and if so please point me in the right direction and it will be greatly appreciated.

    I have an old FIE Buffalo Scout Revolver and My question is this, If I were able to obtain a .22 magnum cylinder for it would it be safe to fire it in my revolver?

    Thank you in advance for the help you guys give :)
     
  2. DMZ

    DMZ Member

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    No.

    If it is chambered for .22LR. Even if you could some how get a .22Mag cylinder properly fitted and timed, the bore is too small to safely shoot the larger caliber .22Mags through it.

    You can shoot .22 LR's (.223") safely through a .22Mag (.224") bore, but not visa versa.

    If it once had a .22Mag cylinder, that was lost, and you find a replacement, it should be fitted your revolver by a gun smith to ensure that the timing is correct. You can try it without being properly fitted, but be sure to wear eye protection as it might spit at bit.
     
  3. blacktornado

    blacktornado Member

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    Thank you, I have no intentions of doing it, but was curious as to weather or not it was possible.

    Now I know :D
     
  4. DMZ

    DMZ Member

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    I am not familiar with the FIE Buffalo Scout. Was it sold with a .22LR cylinder and a .22Mag cylinder, like Rugers Single Six?
     
  5. blacktornado

    blacktornado Member

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    Some were and some were not. Mine does not have a 22 mag cylinder, but it may have at one time, it has been passed around our family through the years. I am happy with shooting just .22lr but was curious about the possibilities.
     
  6. bergmen

    bergmen Member.

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    I don't know where you get this idea. What about Ruger's Super Single Six Convertible?

    The .22 Long Rifle bullet and the .22 Magnum bullet are close enough in diameter to not be an issue (.223 vs. .224). Colt has a convertible .22 revolver also that has been around for a long time as well back in the day.

    JMHO

    Dan
     
  7. kanook

    kanook Member

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    .224 bore
    .07 and you go home. .08 and you go to jail.

    There is a difference. Perhaps you get a reloading manual and do some reading.
     
  8. bergmen

    bergmen Member.

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    A more appropriate resource is SAAMI (http://www.saami.org/index.cfm).

    In their ANSI-SAAMI Z299.1-1992 specifications, they list the following:

    1) .22 Long Rifle:
    Bullet Diameter - .2255
    Barrel Bore Diameter - .217
    Barrel Groove Diameter - .222
    2) .22 Winchester Magnum:
    Bullet Diameter - .2245
    Barrel Bore Diameter - .219
    Barrel Groove Diameter - .224

    My own bullet diameter measurements show:
    1) CCI .22 CB - .2240
    2) Winchester .22 LR HP (SX22LRH) - .2225
    3) Winchester .22LR HP HV (X22LRH1) - .2235
    4) Winchester T22 Target (XT22LR) - .2232
    5) CCI Green Tag Competition - .2248
    6) Winchester .22 Magnum JHP (Z22MH) - .2240

    So, SAMMI specifies a larger bullet diameter for .22 LR than for the .22 WMR.

    The SAAMI specs for barrel bore and groove diameters indicate larger dimensions for .22 WMR than for .22 LR.

    I have both but have not measured the barrels.

    Dan
     
  9. DMZ

    DMZ Member

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    .22LR

    Barrel Bore Diameter - .217
    Barrel Groove Diameter - .222

    Bullet is lubed soft lead. Bullet will easily obturate.

    .22Mag

    Barrel Bore Diameter - .219
    Barrel Groove Diameter - .224

    Bullet is copper jacketed. Bullet will not easily obturate.

    Firing a jacketed bullet down a bore that is smaller than the bullet was designed for is asking for trouble, such as the jacket being left in the bore as an obstruction.
     
  10. bergmen

    bergmen Member.

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    Yep, I agree completely. I can see now that my Ruger Super Single Six Convertible barrel must have the bore/groove dimensions of a .22WMR in order to be safe for both rounds.

    Learn something new everyday...

    Dan
     
  11. tarosean

    tarosean Member

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    Indeed, Ive had the same gun for many many years and got the same education just now..
     
  12. Walkalong

    Walkalong Moderator

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    While the debate will continue until the end of time, I shoot .22 Mags in this OMM .22 LR that was converted to .22 Mag by merely re-cutting the chambers.

    The Colt OMM were said to have tight bores, but it shoots great with no sticking cases etc. I did have to polish the chambers when I got it. They were left quite rough.

    Lots of fun. :)

    [​IMG]
     
  13. Action_Can_Do

    Action_Can_Do Member

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    :confused:I question whether it really matters. Bullets do not all have the exact same dimensions. When i measured jacketed bullets I planned on using to reload a 45 auto, I couldn't believe the differences in diameters. 452,453,451. They were all over the place. Not much difference between the 22lr and the 22 magnum at all. Now, one could argue that when the dimensions fell to the far extremes it's dangerous. For instance, what if you have a 22lr with a tight bore and fire some 22 magnums through it that happen to be slightly oversized? I honestly don't know.
     
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