In March 1963, Lee Harvey Oswald, using the alias "A. Hidell," purchased by mail order a 6.5×52mm Carcano Model 91/38 infantry rifle (described by the President's Commission on the Assassination of President Kennedy as a "Mannlicher–Carcano" ) rifle with a telescopic sight. He also purchased a revolver from a different company, by the same method. The Hidell alias was determined from multiple sources to be Oswald. It is officially accepted that the rifle was fired by Oswald from the Texas School Book Depository in Dallas, Texas, to assassinate United States President John F. Kennedy as his motorcade drove by on November 22, 1963. Photographs of Oswald holding the rifle, a palmprint found upon examination of the rifle, and detective work tracing its sale, all eventually led to Oswald.Marina Oswald later testified she was told by Lee that the rifle was also used before in an attempt to assassinate retired U.S. Army General Edwin Walker in Dallas.
The Oswald rifle is an Italian Fucile di Fanteria (Eng: Infantry rifle) Modello 91/38 (Model 1891/1938) manufactured at the Royal Arms Factory in Terni, Italy, in 1940. Its serial number identified it as the single weapon of its type made with that number. The so-called Model 91 bolt-action rifle had been introduced in 1891 by Salvatore Carcano for the Turin Army Arsenal. After 1895, the Modello 91 used an en bloc ammunition clip similar, but not identical, to the Austrian Mannlicher ammunition clips, and hence the names of Mannlicher and Carcano came to be associated with the Oswald rifle; this included association with them by the Warren Commission. The ammunition used in the clip was the 6.5×52mm Cartuccia Modello 1895 rimless cartridge (designed in 1890), also sometimes called Mannlicher–Carcano ammunition, after the rifle designer and the general type of clip it used.