I bought both the Drilling book and the Double Rifle book. Lot's of good pictures and info on the different types of actions.
I will say this though. I would think that Herr Klups publisher could have afforded to have the text proof read by someone that speaks English as a primary language and is familiar with gun's technical terms. Many parts read like a bad Chinese takeout menu (I have always thought Chinese restaurant menus were written with bad grammer to give them a degree of "charm"). Add to that the translations of the technical parts, the engineering terms, don't translate well into English and is can be discouraging. Many times I wasn't sure what parts of the gun were being discussed.
And watch out for the picture captions, on most pages they are not next to the pictures they describe.
