I see the system didn't save my edit of "or maybe it's an M1924 or M1925."

You're right, of course. I was thinking that the magazine from either of the above would help in the re-barreling, but neglected the need for a longer action.

I keep saying I'm on the lookout for a Sequoia, but haven't found the right one yet. I did see one some time ago that needed a lot of work, but let's just say the dealer was very proud of it!