Check the Nikon African series 1x4.5
I had alot of trouble scoping my Sako AV bolt action in 30-06. Nothing that I found had enough ring spacing. I needed atleast 6 inches, with lots of eye relief. The Nikon has a very long tube without an enlarged objective. The downside is that you only get around 15mm for the objective. It would be more of an issue if the scope had more power but with it up at 4.5 it is still nice and bright. There's two things that I note keeping it from being even better. The diameter of the rear of the scope is kinda large, bigger than my Leopold 1x5 VXIII. Also the scope cap has the shinny gold African Buffalo on it. I am going to contact them and try to buy a plain cap to swap it out. I love the german reticle that Nikon chose for this scope.