Leupy fixed 3x or 4x. My .338 has killed every variable I have used except one. A Leupy Vari-X III 2.5-8x I bought new in 83 for the same rifle. It worked fine but I didn't like how close it was to my face in the Ruger rings. I switched to a M8 4X eventually after several different variables went kaput. Its far enough away I can shoot prone with no worries and has never bobbled. Also it seemed I would set whichever scope I had on 4x and forget about it anyway.