One writer is correct about rough chambers cut with worn reamers at the factory. These will typically be on the small end of the tolerance. Put a .22 brush in a power drill and polish each chamber on slow speed with the polishing compound for 5-10 seconds. Swab each chamber clean with your Hoppe's or whatever, then once more time with the polish, and swab. This is the safest way to smooth up the chambers and will fix that kind of problem 95% of the time. A common problem with .22 revolvers, even brand new ones. For the other 5%, unless you are a skilled gunsmith, you should forget trying to use a chamber reamer yourself and risk damaging your nice revolver. send it back to the factory.
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