It is difficult to address the original question without knowing what you intend to hunt but I would suggest the following,
1 - Get the best LEUPOLD new or used that you can afford - you might have to go slightly over $500.
2 - Don't get too much magnification - you will need a wide field of view at closer ranges - Animals don't stand around waiting to be shot.
3 - Don't get sucked-in by all the crazy new reticles with all the dots, hash marks and other visual clutter - keep it simple.
4 - Install the scope yourself - if you don't know how, it's time to learn - Don't let a gun store part-timer F--k things up from the start.
5 - Read all the instructions and discover all the things your scope can actually do - even a simple fixed power will amaze you.
6 - Practice - lots of practice.
7 - If you take an interest in this it will build confidence and understanding that will pay off when you have to shoot.
When shopping up to a $500 limit it will seem like there are endless options but a lot of it is just marketing crap because just like good guns, good scopes don't wear out.
I suggest Leupold because of their no BS repair warranty - I have used it - Leupold fixed it with no questions and no BS.
With more than 50 years of experience with scope sighted rifles I stick with quality, simplicity and lots of practice.
D.