I have a Balvar 2.5-8X with quick-release mounts that can be switched from one rifle to another as the adjustments are in the mounts. I use the scope on three different Remington 760 rifles. The scope is clear as a bell. I have a spare new-in-the box in case this one is damaged or lost. Bausch & Lomb knew how to make optics.

One of the best-kept secrets is the Weaver Micro-track scope. They have great optics and are quite rugged with reliable adjustments. My favorite is the 2.5X fixed-power version.