I had both brands. One was 2-7x Browning branded Redfield mounted on old Browning Safari .300 Magnum and Nikon Monarch Safari 1-4x20. Assuming similar vintage the two mentioned by original poster should be of similar optical quality. Given choice of those two and assuming eye relief of 3" or more I would pick 2-7x, It is smaller lighter scope which means less force on mounts during recoil and larger field of view at low magnification.