Clay,
Seeing that this is your first post let me take a moment to welcome you to Graybeards. Second "magnum" type springer air rifles have a history of destroying even good air rifle scopes. I tried a Bushnell air rifle scope on my first Beeman Kodiak and it didn't even make it through the sighting in process. I ended up trading that air rifle in on my first Crow Magnum III that my son owns now. I use nothing but Burris Air Rifle scopes and have never had a problem. Let us know if you get one of the RWS 450's and how it works for you. Lawdog