Brennon,

I'll challenge the statement regarding my "understanding" of jointing and the general double rifle building process. I'm "Well read" that's all. I need a lot more time on the files and lamp black before I can claim anything.

I enjoy picking the brains of those who have "been there and done it" it contributes to my understanding of the process and demystifies the "black art" processes involved in building double rifles.

I also enjoyed reading Ellis Brown's book and his practical approach to regulation of double rifles.

The shoe lump makes a lot of sense. Heym use it on their doubles. A talented Tasmanian gunsmith, who's name escapes me, posted photos of making shoe lump barrels and you'll find that interesting/educational.

I believe the benefit would be that you can machine your barrell profile to finished size, add the machined shoelump and fit the barrels thereby saving a lot of file time ЕЕ.. that you'd have to do with chopper lump or monobloc barrels.

Another interesting thing that I've read, possibly in Vic Venter's book (???), is that the old actioners reckon that a properly jointed double (with Purdey underlugs) could be fired without the locking bolt in place. Held shut with a piece of string. Please forgive me if I've misquoted anyone.

Vic venters, if you're reading this, it's about time you did another book.

Great topic. Please keep us updated on your project. I wish you every success.