Just a heads up, you can't reload a revolver silently. Or any gun for that matter... Unless you have sound absorbing powers at least. 

My point being that just because you say something is silent, doesn't mean it will be. The casing will always scrape against the chamber, the cylinder will always have a faint click as it spins, and the hammer will always click when it cocks back. That's just the mechanics of guns. So while it might be inaudible for a normal human, someone like X-23 with superhuman senses would be able to hear it.

I say all this because she's going to in my next post, and I wanted to explain why and how so you don't think I'm just ignoring what you wrote to gain an advantage. Since Aureo doesn't have any sound manipulating powers, I have to assume that the normal acoustic properties of revolver mechanics still apply in this scenario. 

Basically, it's the same as if I wrote that she lifted a truck and threw it at him. She's nowhere near that strong, so you'd be well within your rights to say the truck was a tonka toy that she grabbed off the street, and respond accordingly.