I clean & lubricate any firearm I shoot very soon after I conclude the firing session. This is due in fact to my career in LE where if something can go wrong, it will go wrong. I did everything I could to minimize this happening by at least addressing matters I could control, i.e., maintenance of my firearms.

That being said, when shooting a large number of .22's in either my S & W 15-22 or my Model 17, I also take along a rod & brush. Especially as relates to the revolver I occasionally brush out the chambers so that subsequent cartridges will chamber easily. With the 15-22 I have not found this to be as necessary, provided the weapon was cleaned & lubed prior to beginning the session.

Jm2c.

JPJ