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Cartridge, Caliber 5.56 mm, Ball, M855 [Green tip]: 5.56×45mm 62-grain FN SS109-equivalent ball cartridge with a steel penetrator tip over a lead core in a full copper jacket. It is designed to penetrate lightly armored targets, such as body armor or light vehicles, and has a steel core that provides increased penetration. [citation needed]
M855A1 projectiles for 5.56×45mm NATO rifles replace traditional lead alloy cores with an environmentally friendly copper core with a 19-grain (1.2 g) steel "stacked-cone" penetrating tip. Solid copper bullets typical of the majority of nonlead ammunition certified for hunting in California. [1]
A worker at Lake City Army Ammunition Plant packs two cans of newly manufactured 5.56×45mm NATO ammunition into a wirebound crate. (c. 1998) Headstamp of a .50 caliber cartridge casing made at the Lake City Army Ammunition Plant in 1943 and recovered from the Sahuarita Bombing and Gunnery Range in 2012.
The round was loaded with a 4.4 g (67.9 gr) bullet containing a hardened tool-grade steel core with lead wrapping which is fired at a muzzle velocity of 879-895 m/s. It can be identified by its green bullet tip. It was made to achieve 100% penetration of 5mm thick steel plate "5P" up to 70 metres. [31]
It also refers to civilian 5.56×45mm NATO and 7.62×39mm M43 Soviet full-metal-jacketed lead-core bullet hunting cartridges packed in novelty 700-round Warsaw Pact-style oval-shaped vacuum-packed sheet steel "spam cans". MONARCH (Academy Sports) – Barnaul currently makes the steel-cased ammunition for Academy Sports + Outdoors' MONARCH brand ...
The table below gives a list of firearms that can fire the 5.56×45mm NATO cartridge, first developed and used in the late 1970s for the M16 rifle, which to date, is the most widely produced weapon in this caliber. [1]
The newer steel magazines are about 0.5-inch longer and four ounces heavier. [165] The M16's magazine has become the unofficial NATO STANAG magazine and is currently used by many Western nations, in numerous weapon systems.
The ball 4.6×30mm cartridge weighs 7 g and is loaded with a 2.7 g full metal jacket projectile with a PbSb-alloy core and a copper-plated steel jacket that achieves 600 m/s (2,000 ft/s) muzzle velocity. The cartridge is designed for the MP7. This ammunition is optimized for energy transfer in soft targets and offers good precision. [12]