A friend of mine is going to look into a 22 revolver. Not sure what kind [make-model] or 22 mag.,22short,22 L.R. I said I would try to help out. It will be for conceal carry and she is an older lady. She has limited shooting expierance but has shot a 38 several times. So my question is what is a decient make-model 22 and which 22 works in which. For example will a 22 L.R. fit a 22 mag. or 22 short? What works with what? Thanks. By the way she wants a double action.