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Discussion Starter #1
Probably a dumb question, i've never thought it out completely.

Why do i need 2 cylinders to shoot .22LR and .22Mag out of the same revolver, but i can shoot .38 Special in the same cylinder as .357 Magnum??
 

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Yea,the .22mag has a larger case diameter than the .22lr,so they are not interchangeable,whereas the .357 mag is just a longer .38,same case diameter.
 

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Discussion Starter #3
i thought that might be it, but when i last compared cases couldn't discern the difference.


Its apparent here:
 

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the case length difference between a .22 lr and a .22 mag is substancially longer than between a .38 special and a .357 mag.
 

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If you shoot 22LR in a 22WMR cylinder such as in a Ruger Single Six, you are likely to see many of the LR cases split due to the larger hole size for 22WMR. It may be a safety problem as well in addition to having a difficult time getting the spent LR cases out.
 
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