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Cementite (or iron carbide) is a compound of iron and carbon, more precisely an intermediate transition metal carbide with the formula Fe 3 C. By weight, it is 6.67% carbon and 93.3% iron. By weight, it is 6.67% carbon and 93.3% iron.
A full metal jacket (FMJ) bullet is a small-arms projectile consisting of a soft core (often lead) encased in an outer shell ("jacket") of harder metal, such as gilding metal, cupronickel, or, less commonly, a steel alloy. A bullet jacket usually allows higher muzzle velocities than bare lead without depositing significant amounts of metal in ...
Full Metal Jacket is a 1987 war film directed and produced by Stanley Kubrick from a screenplay he co-wrote with Michael Herr and Gustav Hasford. The film is based on Hasford's 1979 autobiographical novel The Short-Timers. It stars Matthew Modine, R. Lee Ermey, Vincent D'Onofrio, Adam Baldwin, Dorian Harewood, and Arliss Howard.
US Army map indicating War Zones C, D, and the Iron Triangle, circa 1965-1967. The Iron Triangle (Vietnamese:Tam Giác Sắt) was a 120 square miles (310 km 2) area in the Bình Dương Province of Vietnam, so named due to it being a stronghold of Viet Minh activity during the war.
The long-held view is that the carbon atoms fit into octahedral interstices in a close-packed metal lattice when the metal atom radius is greater than approximately 135 pm: [2] When the metal atoms are cubic close-packed, (ccp), then filling all of the octahedral interstices with carbon achieves 1:1 stoichiometry with the rock salt structure. [4]
Total metal jacket (TMJ or full metal case) bullets [1] are made by electroplating a thin jacket of ductile metal (usually copper) over a core of different metal requiring protection from abrasion or corrosion. [2] Similar full metal jacket bullets mechanically swage a thin sheet of metal over the core. The swaging process leaves an opening ...
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The 'effect-firing' s.S. round featured an extra carefully measured propellant charge and seated an sS full-metal-jacketed boat-tail projectile of match-grade build quality, lacking usual features such as a cannelure, to further improve the already high G1 ballistic coefficient to approximately 0.595 (G1) or 0.300 (G7). [31]