I need cheaper options. Other rings may fit without using the factory base. Some old Trashco rings say on the box for Tikka 412 and Desert Eagle. I am going to try for some of the Desert Eagle type rings. I believe they will fit the barrel dovetail. I'm still paying for the 412 and two barrel sets. Just have to be frugal. Also will be at the KC MVACA gunshow in a couple of days. Must have a look for other things as well. Anyone with further ideas? RZ