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This is a list of United States Army fire control, and sighting material by supply catalog designation, or Standard Nomenclature List (SNL) group "F".The United States Army Ordnance Corps Supply Catalog used an alpha-numeric nomenclature system from about the mid-1920s to about 1958.
Army Publishing Directorate homepage at army.mil -Free Field Manuals and other publications in .pdf format. 500 Field Manuals online at SurvivaleBooks.com Archived 2022-06-10 at the Wayback Machine; Incomplete list of active field manuals at army.mil; Field Manuals online at globalsecurity.org Archived 2023-04-02 at the Wayback Machine
The M21 remained the Army's primary sniper rifle until 1988, when it was replaced by the M24 sniper weapon system; some M21s were later re-issued and used in the Iraq War. [ 12 ] [ 3 ] In standard military use, the M21 uses a 20-round box magazine as the other members of the M14 family and weighs 11 pounds (5.27 kg ) without the scope. [ 13 ]
Observes shell bursts and adjusts fire by forward observation or computation methods; consults with commanders of supported unit in determination of appropriate artillery targets, normal barrage, and zones of defense; trains personnel in procedures of artillery operation; organizes observation posts; sets up and maintains communication systems."
In appearance and design terms the Model 82 is an entirely conventional sniping weapon. It uses a manual bolt action the same as the classic Mauser 98 rifle, allied to a heavy free-floating barrel chambered for the 7.62×51mm NATO round. The barrel weighs 1.98 kg and is manufactured from chrome molybdenum steel.
The cornerstone of the A-556 rifle design is the piston operating system. A gas-driven piston is incorporated into the upper half of the forward rail system and never touches the barrel. This makes the barrel free-floating, which increases accuracy.
A manual of arms was an instruction book for handling and using weapons in formation, whether in the field or on parade. Such manuals were especially important in the matchlock and flintlock eras, when loading and firing was a complex and lengthy process typically carried out in close order .
16 in Mark III coastal defense gun on a proof mount at Aberdeen Proving Ground, Maryland. The second 16-inch (406 mm) gun was the United States Army 50 caliber Model 1919 (M1919). The first of these was deployed to Fort Michie , Great Gull Island , New York on a unique all-around-fire M1917 disappearing carriage, with elevation increased from ...