Manual of 220 pages on the rifle M1903 published in 1940. 
 This copy is nominative, on the cover. 
 Other manuals for sale on the site are under the same name. 
 
 
 FM 23-10 served as a sniper training manual for the United States Army. 
 It covers all aspects of sniper training, selection, shooting, gun maintenance, tactics and many other topics.