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It appears that this round can drastically improve the performance of any AR-15 weapon chambered to .223/5.56 mm. Superior accuracy, wounding capacity, stopping power and range have made this the preferred round of many special forces operators, and highly desirable as a replacement for the older, Belgian-designed 5.56×45mm SS109/M855 NATO round.
The EPR "bronze tip" ammo – previously known generically as "Green Ammo" – was born at the kickoff meeting for Phase II of the Army's Green Ammunition replacement program in mid-2005, at the Lake City Army Ammunition Plant. Participants met to discuss problems surrounding environmentally-friendly small arms training ammunition. [18]
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]
4.6×30mm – PDW; 5.45×39mm [2] – intermediate; 5.56×45mm NATO – Original M16A1 cartridge: Can also safely fire .223 Remington, intermediate [2]; FN 5.7×28mm – PDW; 6mm Mongoose (wildcat)
The M16A2 fires the improved 5.56×45mm (M855/SS109) cartridge and has a newer adjustable rear sight, case deflector, heavy barrel, improved handguard, pistol grip, and buttstock, as well as a semi-auto and three-round burst fire selector. [21] Adopted in July 1997, the M16A4 is the fourth generation of the M16 series.
M27 links connect up to 200 5.56×45m NATO rounds (4 × M855 ball : 1 M856 tracer) contained in an ammunition box used to feed a M249 light machine gun. The M856 tracer cartridge (63.7-grain bullet) is used in the M16A2/3/4, M4-series, and M249 weapons (among other 5.56mm NATO weapons). This round is designed to trace out to 875 yards, has an ...
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 minimum proof and performance requirements for small arms ammunition of NATO calibres are covered in STANAGs as follows: [7]. 5.56 mm. STANAG 4172 and NATO Manual of Proof and Inspection AC/225 (LG/3-SG/1) D/8.