Question for those who dry fire

Little minor surgery on the shooting wrist, so I was practicing with my off hand (unloaded gun of course) while looking in the mirror to see how well I kept the muzzle under control I was noticing a small spark when I pulled the trigger.

This tells me that I have metal on metal contact - question is thus

big deal needing attention? or, nothing to worry about

Thanks

Happened to me with a new 686 plus (7 shot) read this:

686 Dry Firing Lesson

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2B1ASK1

I purchased a new 642 a few months ago and had the same issue; it literally was a "shower of sparks." I have not had this happen on any of my previous S&W revolvers. I e-mailed S&W but never received a reply from them. It didn't matter, though, as I installed an APEX kit with their firing pin and no more sparks. A friend also purchased a new 642 a few weeks ago and his sparks, too.

I'm thinking it has something to do with newer productions guns (firing pin specifically?) as I have a NIB 342PD and a recently purchased LNIB 1993-1994 production 442 and neither of them have this issue.

Either way I had no intentions of worrying about it as if my 642 broke or malfunctioned in any way due to this friction I would simply have S&W fix it on their quarter. My personal feeling is that nothing would have malfunctioned even if I hadn't changed to the APEX kit.

I'm not sure this helped with a cause but it seems fairly common.

Gary

Use some snap-caps. I prefer the Triple-K kind as I feel they have
less excess headspace and more firing pin strain relief.
I have some AZooms that the firing pin doesn't even touch.
It might be only their 44s that do this.

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Nemo

This is why I never dry fire my flint locks

Lad