Tom, thanks for the pic. Still too high for my taste. .400 - .450 is my target.
A base the height of the Burris two piece picatinny, .17", is what it takes. Most low rings are about .250", with a combined height of .420" with a the Burris base.
An option, though pricey ($200), is the APA Trulock low rings. They are the only picatinny ring I know of that is lower than .250, coming in at .160. If the Defiance base is around .250" the combo will work for me.
