I have worked on boxlocks and sidelocks and can take my Round Action apart and put it back together in minutes but have never worked on a 21. Mine continues to occasionally have a light strike on the left barrel. I have a great gunsmith but thought I should be able to disassemble and clean and maybe check for problems, but without having done one, I wanted to check as there is often some little trick that makes the job much easier.

This ain't a dress rehearsal , Don't Let the Old Man IN