Would anyone have information on the type of Scope that I recently purchased. It is a Bushnell Scopechief 4X32 mat finished and full sized scope. The weird thing is it has a Ruger Emblem on the outside of the adjustment cap. It was new old stock, but it did not have an owners manual. I was wondering if this is a .22 scope, or could it be used on a .308. It is a very clear scope, and I want to use it. Thanks in advance for any information if you have it!