I have a Weaver fixed 2X on a .44 Mag Super Redhawk... about 8 years now. It has been in all kinds of weather without fogging, and has held zero through several hundred rounds.
My only issue is that, when compared to a Leupold 2X handgun scope or a 2-7X variable rifle scope, this one really appears to be more like an honest 1.5X. That hasn't stopped it from bringing home the bacon (or the venison, in this case).