Yes, you can pull the trigger and dry fire it, but the mag disconect safety blocks the firing pin from making the full motion to make contact with the primer. So yes, it sounds like SR9/c could be fired, but actually it should not be able to unless the mag disconnet is removed.

Also, You can damage the firing pin by repeated dry firings without an empty mag in the gun.

CAUTION: Dry firing your RUGERŪ SR9TM with the magazine removed may
result in damage or unnecessary wear to the striker blocking mechanism.

If you're worried about it, just try dropping the magazine with a round in the chamber next time you're at the range (where you can safely let off a round down range). If it doesn't fire, you're good.

KG

Thanks for learning your weapon, so many don't.

Dry-fire practice is very valuable in learning to shoot effectively.

To dry fire your pistol, you will need a set of snap-caps, a kind of dummy cartridge with a soft "primer" that absorbs firing-pin strikes.
• First, put all of your live ammunition in another room.
• Second, load one magazine with at least two snap-caps. More is better.
• Third, insert that magazine into the pistol.
• Fourth, retract and release the pistol's slide, loading a snap-cap into its chamber.
• Fifth, dry-fire a "shot."

• For subsequent dry-fire "shots," you may have to retract the slide again. That will eject the snap-cap in the chamber, and will load the next one in the magazine. Eventually, you will have to retrieve your ejected snap-caps, reload the magazine, and start all over again.