I think that as a rule of thumb, it is a good thing to NOT dry fire any rimfire. I say this because there are hundreds of different rimfires out there rifles and pistols, and some you can safely dry fire, and some you shouldn't, etc. Why not load a fired case and snap on that? It works really well in a revolver, and also in bolt actions where you can manually cock the hammer/striker. This way, you can dry fire, and have the means of protecting the chamber with that old shell.
Unkel Gilbey
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