I just came across a Sightron SII in 3-9x42 for $179 plus its got a $50 rebate. does anybody have any experience with these scopes? I had never heard of them before. It would be going on my Ruger M77 Mark II in 260 Rem. The main application would be whitetail hunting with most shots in the 50-250 yard range. Any imput would be appreciated!