basic training. Cartridge, Caliber 5.56 mm, Blank, M200 [Crimped tip with Violet lacquer seal]: 5.56×45mm training blank cartridge. Cartridge, Caliber 5.56 mm, Ball, M202: 5.56×45mm 58-grain FN SSX822 cartridge. Cartridge, Caliber 5.56 mm, Dummy, M232 [No primer, Black-anodized case and bullet]: 5.56×45mm inert cartridge. Used for testing rifle mechanisms. Cartridge, Caliber 5.56 mm, Ball, XM287: 5.56×45mm 68-grain ball cartridge produced by Industries Valcartier, Inc. An Improved version was also produced designated XM779. Cartridge, Caliber 5.56 mm, Tracer, XM288: 5.56×45mm 68-grain tracer cartridge produced by Industries Valcartier, Inc. An Improved version was also produced designated XM780. Cartridge, Caliber 5.56 mm, Grenade, M755 [Crimped tip with Yellow lacquer seal]: 5.56×45mm grenade launching blank specifically for the 64mm M234 launcher. The original white lacquer seal was discontinued due to excessive bore fouling. Its design is otherwise an exact duplicate of the M195 Grenade cartridge. Cartridge, Caliber 5.56 mm, Ball, XM777: 5.56×45mm ball cartridge. An attempt to create a 55-grain SS109-style Semi-Armor-Piercing round that weighed the same as the M193 and could use the same US-standard 1-in-12-inch rifling. It replaced the 6×45mm SAW round as the baseline cartridge for the Squad Automatic Weapon trials in the late 1970s and early 1980s. Cartridge, Caliber 5.56 mm, Tracer, XM778: 5.56×45mm tracer cartridge mated with the XM777 Semi-Armor-Piercing cartridge. 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. Cartridge, Caliber 5.56 mm, Ball, M855LF Lead Free [Green tip]: 62-grain bullet with a steel penetrator tip over a tungsten-composite core in a full copper jacket. Primarily used during training in countries with strict lead disposal laws. Cartridge, Caliber 5.56 mm, Ball, M855A1 Enhanced Performance Round [unpainted steel penetrator tip] (2010–Present): 62-grain bullet w/ a 19-grain steel penetrator tip over a copper alloy core in a partial copper jacket. Cartridge, Caliber 5.56 mm, Tracer, M856 [Orange tip]: 5.56×45mm 63.7-grain FN L110 tracer cartridge. Provides red visible light and lacks a steel penetrator. Cartridge, Caliber 5.56 mm, Tracer, M856A1 [Red tip]: 5.56×45mm 56-grain Lead Free slug (LF) Tracer with similar ballistic performance to the M855A1 and improved visible trace to range consistency. Cartridge, Caliber 5.56 mm, Plastic, Practice, M862 [Brass primer, Aluminum case and Blue plastic projectile]: