Much like the other Mauser book I put on the list, this one has lots of machining information. I was most interested in the history of the Mauser rifles and all of the variants. A most interesting read if you care about the history of this rifle which is the basis of America's most popular sporting rifles. This book details refinishing, repairing, and identifying the various models of Mausers which can be a great asset to a collector. This book was published in 1991, and the proliferation of the Internet has made a lot of the information readily available.