.22 Mag Cylinder?


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blacktornado
February 15, 2011, 12:21 AM
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 :)

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DMZ
February 15, 2011, 12:30 AM
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.

blacktornado
February 15, 2011, 12:52 AM
Thank you, I have no intentions of doing it, but was curious as to weather or not it was possible.

Now I know :D

DMZ
February 15, 2011, 12:55 AM
I am not familiar with the FIE Buffalo Scout. Was it sold with a .22LR cylinder and a .22Mag cylinder, like Rugers Single Six?

blacktornado
February 15, 2011, 01:05 AM
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.

bergmen
February 15, 2011, 01:27 AM
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

kanook
February 15, 2011, 09:22 AM
What about Ruger's Super Single Six Convertible?
.224 boreThe .22 Long Rifle bullet and the .22 Magnum bullet are close enough in diameter to not be an issue (.223 vs. .224)..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.

bergmen
February 15, 2011, 03:59 PM
.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.
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

DMZ
February 15, 2011, 06:24 PM
.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.

bergmen
February 15, 2011, 06:32 PM
.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.
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

tarosean
February 15, 2011, 06:42 PM
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...



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

Walkalong
February 15, 2011, 09:28 PM
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. :)

http://www.thehighroad.org/attachment.php?attachmentid=115176&d=1265761323

Action_Can_Do
February 16, 2011, 12:12 AM
: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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