How many times can you dry-fire a spent shell?

[41 Colt]

I'm dry-firing my 9mm with some of my spent shells, and I've noticed the primer cap becomes heavily indented after a dozen or so firings, so I have been changing them. Will they become too indented and no longer protect the firing pin at a point?

 

[ron hilchey]

not sure that dry fire practice on spent cases actually protects you firing pin substantually. snap caps are more suited (elastic), but most i know don't bother with them for center fire. some of us will dry fire 15-20 min. a day without. haven't had a problem yet.

 

[scotty]

I think you'd be better off dryfiring with an empty chamber rather than smacking your firing pin against a already struck primer. Snapcaps are good because the primer moves so you have no issues with damage.

 

[41 Colt]

The manual says to use an empty casing. I do have snap caps on order though.

 

[ben hunchak]

Until you get bored.

 

[IM_Lugger]

make you own snapcaps...remove the primer and put an eraser in place or hot glue. I wouldn't use a spend case.