The first two look like a scratch and nothing more. One way to tell if a wheel gun has been used, is if it has a significant 'ring of honor' on the cylinder, it appears this one does. If I had to take a wild guess, I'd say you got one pulled over on you. That firearm, from what pictures you have shown, appears to be used. Taurus does test fire them, but they do not send new firearms with that amount of wear and tear on them.