I've been debating the use of a scope on my mossberg 500. I realize that turkey shooting and shotguns are done at closer proximity than deer hunting. At 39 though, I feel that my eyes are not as good as they once were. Also, I've been wearing glasses since the 7th grade. I did come across Bushnell's dusk till dawn 1.5-4.5 x 32mm shotgun scope, any thoughts?