Steiner is the best rifle scope that I've ever used and it's also one of the most expensive, but that expense translates into durability and reliability. I never have to worry about the turrets working or whether or not it will hold zero. Many of the rifle scopes talked about in air gun forums are not in this category. Clarity from edge to edge, true color and maximum light transmission are second to none. It’s made to be used in any environment; day or night, hot or cold, wet or dry. Unfortunately, the AO only focuses down to 25 yards so it’s not the choice I would make for a spring or gas ram air gun. If you have the chance to handle one of these scopes, you will literally “see” the difference between it and what you are currently using.
https://www.youtube.com/watch?v=yzx3DscRvwo
http://www.steiner-optics.com/riflescopes/t-series/t5xi-3-15x50
https://www.youtube.com/watch?v=yzx3DscRvwo
http://www.steiner-optics.com/riflescopes/t-series/t5xi-3-15x50