Remember the rule of three! If they say "it's about 500 or so" then it's really like 1500!
Most of my guns I can guesstimate to within fifty rounds or so. My Glock 17 would be to within a few hundred or so. I have several thousands of rounds through that 17 and I have taken very good care of it. But if you look in the right places you can tell that it has been used a lot.
If she "looks like the village bicycle" then she probably is!![]()