For the life of me I can't understand why you would care what kind of glass it is! All the scope company's say there glass is the best, so what I would do is go to a match and ask people if you can look though there scopes. I let my buddy Eddie K. shoot one of my rifles that has a Leupold VX-6 7x42x56 and he is still raving about it and believe me he knows his scopes just ask Matt K. Everyone has there likes and dislikes. So go look at different scope and make up your own mind, you are the one that will be shooting it.
Joe Salt
Joe Salt