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Vortex Optics has some great stuff in and around the price range you mentioned. Take a look at...www.vortexoptics.com. If you see something you like, PM me and I can get whatever you need!
I would stretch the budget a wee bit and get the Leupold VX-I 2-7 with the L.R. reticle. It is a very sleek little scope; bright and you will love the L.R. if you want to stretch your shots out a bit. You should be able to get one in the $275 range if you shop around a bit.