From what I understand, it depends on the design of the particular firearm. As you mentioned with rimfires, it is not recommended. Ruger brags about their single action models being able to be dry-fired forever w/o damage.
Firearms such as Colt's SA with a firing pin pinned on the hammer don't stand up well to dry firing, but guns with hammer firing pins that are a machined part of the hammer (one piece) do better. The shooting intructors I have dealt with recommended regular dry-fire practice w/ 1911 style weapons, so I'm guessing it's not a problem with them. At least I haven't had a problem yet.
|