I am with Xero all my centerfire rifles have Leupold scopes on them. I love the fine duplex I just bought with CDS knob it is a VX2 4-12 with AO also. It works great on my Savage 308 target rifle clear and dead on. I did not realize how good fine duplex was till I got this one. My others are std. I may get a couple changed to fine the deer rifles are ok way they are but varmint rifles would be better with the fine duplex. Great products would not use any thing else and have tried others and had them fail at wrong time fogging not enough light you get picture. Stick with Leupold American made. I even got one of there Redfield Revolution scopes on a 10/22.