Charlie- a friend had a similar problem-sent his M21 to Jack Rowe in Enid-OK I'd check GUN DIGEST as I think he is listed there- Jack is a London trained gunsmith specializing in double guns- my friend was very pleased with the work- If you live in MN perhaps Jack Puglisi in Duluth can recommend a qualified 'smith for your 21- I'd love to own one- the late Jack O'Connor sure was a big "fan" of John Olin's double-RWTF

"The field is the touchstone of the man"..