Never heard of a Leo. I thought Leupold bought Redfield. Leupold is one of the finest makers of riflescopes on this planet except for a couple of their low budget (cheap) models like the Rifleman. Redfield was one of the best American scopes at one time, and I am glad to see the brand name come back. Maybe they will once again be considered top shelf at some point iin the future. I have some old Redfield, Weaver, and Leupold scopes on old rifles that once belonged to members of my family. Sometimes I take one of these old rifles out for a deer hunt and while the scopes don't compare to current scopes they still work just fine.