[{quoted}](name=SKShish Renzie,realm=EUW,application-id=6kFXY1kR,discussion-id=k2UL4hbd,comment-id=0004,timestamp=2015-11-18T21:43:05.372+0000)
Hmm, yes, didn't notice that before, i suppose it's because i don't know guns and ammo's workings. But after all it's an honest mistake in my opinion; the artist was tasked with portraiting a flying bullet, it probably thought it would end up looking too much blank showing only the bullet as just a small part of the ammunition and not a whole, so he decided to make this "correction" which brought up this mistake. I would call it's more like a small "easter-egg" similar to Blitzcrank's Q icon, which shows the wrong hand grabbing while extending from the Steam Golem's body.
Maybe Blitzcrank was taking a selfie with the non-firing arm, everything would look backwards in that case. No excuse for the primer, case, and bullet in the picture for the headshot passive icon.