Funny you should ask. I built a smr in 2014 with a double base, and my current build, the chestnut smr ,has three bases. Why----cause I could. More trouble than worth, but cool to me. Then a week later, Dennis posted the rifle with 6inch drop, and ,low and Behold, a real oldtime three base sight. Made me so happy i had to go make a toddy.
Almost got the Shoutin Spirit.
I will tell yall, the center base has the blade soldered on, the other two not yet,until I get it sighted in, then I will solder them.
I will post pics of both my guns tomorrow sometime. Too tired now, but I really enjoy this thread.
Have a great evenin fellows. Best regards, ,Dave F