Specify your range, it'll help suggest appropriate optics. Given your price range though, I'd be sticking to the lower side of magnification. Your budget isn't exactly monstrous, so the last thing you want to be doing is going for something with a huge amount of magnification, and sacrificing picture quality and tracking. I'd much rather see my gong clearly albeit small than have it take up half my reticle, be unclear and fail to track when I change ranges. I shot my 1-6 razor out to 600m without having any issues seeing the target, having something that was 16-20x would have just forced me to sacrifice on those days I chose to shoot much closer.