Would anyone know where i can get information on how to monoblock?Iwould like learn the art of monoblock building.

ValTrompia, Italy

I don't think I understand your question.... are you wanting to use an existing shotgun barrel set to make a monoblock and build a double rifle, or are you wanting to build one from scratch ? which is an entirely different thing

in either event, buy "building double rifles from shotgun actions"
jeffe