Hi. I recently inherited a family heirloom of sorts, in the form of a small pistol. My question is regarding the ammunition - The rounds are visibly quite old / tarnished. I'm assuming this may make the ammunition unreliable and/or unsafe to use? Not a firearm person, obviously. But later on I do plan on reading up a bit on the pistol to learn how to properly clean it, etc. I'm a grown man, I'm not fucking around with the weapon, I'm only curious. It's a .25 round, if that matters. The handgun uses a magazine. Thank you for your time.