Ordnance Went Up Front:

Dunlap was a national match shooter and gunsmith before WW2. For once, the Army put the right man in the right job and assigned him to the Ordnance Corps. Serving in North Africa and the Pacific Theater, he made first hand observations of a wide range of US, Allied and Axis small arms, and other weapons and ammunition. After the war, he recorded his extensive experiences in Ordnance Went Up Front, a truly classic gun book.