I had an SR9c for a short time. The manual states not to dry fire without the magazine in place or it can damage the striker assy.
Just for positive protection of the firing pin, I use snap caps when I dry fire anything these days.
:welcome: Welcome to the forum.
Best I can tell, the reason you are not to dry fire w/out a magazine in place is because of the magazine safety.
The mag safety blocks the striker when no mag is in place and can (or will) damage the striker.
Some people remove the mag safety for that very reason. I don't like magazine safetys but that's just me.
I have a question about this. I clean a gun then I always make sure the gun is all functioning correctly. This mean racking the slide which also cocks a semi auto. So if the manual says don't dry fire then how am I supposed to uncock a semi auto without dry firing it after cleaning it? I guess I have to put a snap cap in the mag before pulling the trigger? I am not going to put up a gun with the gun cocked.
My new S&W Victory say do not dry fire. Do they make 22lr snap caps?
Gather up your fired 22 brass and use them, they're already paid for and after you've dinged up the rim enough just throw them away.
You can do the same with center fire cases too, just be sure you don't mix in a live one. I guarantee, it will spoil your day. That's true with snap caps as well.
Carelessness will bite you!. I only use the center fire for around 10 snaps because the dimple gets pretty deep and doesn't cushion the firing pin any more.
Then they get the primer knocked out and reloaded for another day.