Im looking for something up to 400-500 yard range do they make them?
I bought an AGM Sidewinder 35mm monocular (TM35-384 3-24X) almost a year ago. At that time it was roughly $2,200 plus tax. You can certainly see things (hogs, deer) at 500 yards. It might be a stretch to say you can identify them at that distance, but you can certainly distinguish them by their behavior. I hunt over a 50 acre rectangular field so I'm scanning at distances of up to 600 yards. At that distance I can easily see a lone boar, although I cannot positively identify it. That is, I can't absolutely know that it is or is not a hog. But, I can tell that it MIGHT be a hog and that it warrants further investigation.
A 640 optic would undoubtedly offer better results, but at greater expense. All in all, I'm happy with what I got.