Great. Now that's settled. Forget all the alarming stuff. You don't need a S&W expert or a gunsmith; just buy some .38 Special, which is the most common revolver ammo in the world. You can get it online, but also at any sporting goods store or most Walmarts and such. Unless you buy in volume, shipping costs tend to eliminate online price advantages.

The box should not say +P, but if it does, it won't blow up your gun either; it will just be louder, have more recoil and put more wear on the gun. Shooting +P makes some people feel manlier, though . Enjoy!