When making a set of rifle barrels is it possible or practical to machine the bottom plate with the lugs off the shotgun barrels to use as a shoe lump, I like the idea of shoe lumps on a conversion as it can add weight near the action, looks more like a double rifle with the straight chamber section & there is no visible or near visible join ?

I recently bought a Greener Empire, a Army & Navy with a Dolls head top fastener & have a Brno side lock lined up, really wanted a Westely Richards Pigeon gun or Wild Fowler with blowen barrels, but just haven't found one yet .

Im looking at getting a .577 of some type done by the way .