The trouble as I see it with books about this sort of subject, is that in principle the things that you have to do actually would only fill a few pages. There is no way to write a book and discribe how in anything other than simplistic terms. For instence, stoneing the barrels onto face would occupy a couple of lines but took me a solid day of excrutiatingly precise work.

The only way to learn I believe is as I wrote in another thread on this subject, to build a fake set of barrels out of cheep materials (mild steel)and a scrap action.

I am about to start making a .470 for a friend and if there is enough interest here in buying a relitivly cheep soft cover or electronic step by step book then I will write one with photos to illistrate. ( and get somebody who is not dyslexic to edit it :-) )

Regards