Written in the late 1940's most of the information is still relevant today. A must have book for gunsmiths and for anyone interested in guns.

Summary of Material (from the publisher): For shooters, gunsmiths, ballisticians, historians, hunters, collectors...the personal reference notes and experience of more than fifty years as a small arms engineer, trophy-winning shooter, technical gun editor... reflecting accurately for today's use the expert's understanding and advice about: the 1903 Springfield, the 1917 Enfield, .30 Cal cartridges, automatic mechanisms, machine guns and semiautomatics, rifle strengths and weaknesses, exterior weaknesses, exterior ballistics, recoil problems, headspace, the Pederson device, triggers, caliber equivalents, range, gunpowder, and random notes on everything from match ammunition to overloading.