It's time to upgrade my scope. My question is "In the $500.00 and below price range what scopes give you good glass, ruggedness, but most important, first time every time adjustments?" I shoot a lot at the range, but don't compete, so I would really like an adjustable objective, variable power scope of good quality. I zero at 100 yards then dial bullet drop at longer ranges. Since the scope also goes hunting ,I would like a low end power setting of 2x or 2.5x.