If I were to buy one I'd go McMillan Tac-50 A-1 R2. The basic rifle is a bit more than your cost threshold. Can't imagine a better package. The R2 recoil mitigation system is an awesome idea to reduce felt recoil by 90%.
This isn't a barrel with a bolt in the rear like some of those single shot cheapies . Five round magazine, takedown features, a LOP spacer system and its own intregral bi-pod.
McMillan TACŪ-50 A1-R2