Transvaal, Thank you for posting your project. You don't get to see much about "shoe lump" builds, though Alex Beer did post one at one stage.

Like your idea about your intercepting sear. Great "evolution" of that Brno lock.

Matabele thanks for your input on the draw insert I'd read Vic Venter's writing about them but never seen one.

Waidmannsheill could the wire cutter be used to cut the slot in the action as well as cutting the radius on the draw insert ???

Without access to a wire cutter might the draw insert be made via holding (horizontally) in a jig on your rotary table and machining the radius until it's ready to fit ??? Perhaps with a setup like that you could make a set of inserts, gradually increasing in thickness (radius) so that the gun could be more quickly rebuilt as it went "off face".

This is a fantastic topic and helps to demistify some of the processes involved in producing a double rifle. Thanks to all you gents for sharing your knowledge. It will certainly be interesting to see later technology like cnc applied to these processes, making "kits of parts" so that they can be hand fitted.............though fitting with smoke and file to arrive at a product worth owning is a source of great satisfaction.

Love the conversation and the exchanging of knowledge/ideas without the, ever too present, pissing competition that these sites seem to evoke.