Short Range Training Ammo (SRTA) uses a light plastic bullet with a maximum range of just 250 meters. Because the M862 has less energy, the M2 training bolt must be used in the M16 Rifle / M4 Carbine for the weapon to cycle properly. The M2 training bolt and M862 cartridge case use a smaller-than-standard head diameter as a safety feature: this prevents standard ammunition from being able to be chambered or fired. The M862 SRTA is typically used for training on shooting ranges that are limited in size, such as near built-up or populated areas. Cartridge, Caliber 5.56 mm, Armor Piercing, M995 [Black tip]: 5.56×45mm 52-grain AP cartridge with a tungsten core. Cartridge, Caliber 5.56 mm, Tracer, XM996 [Crimson tip]: So-called "Dim Tracer" with reduced effect primarily for use with night vision devices. US Air Force Cartridge, Caliber 5.64 mm, Ball, MLU-26/P (Munition, Live, Unit #26 / Personnel use) (Federal Stock Number (FSN): 1305-968-5892, DOD Identification Code (DODIC): A066; assigned 1 January 1962): Early USAF designation for a 55-grain 5.56×45mm FMJ Boat-Tailed ball cartridge produced by Remington-Union Metallic Cartridge Company. It was their designation for the commercial 55-grain .223 Remington M.C. ("Metallic-Cased", or Full Metal Jacketed) cartridge, which the Air Force initially designated "5.64 mm" (.222 caliber) rather than 5.56 mm (.218 caliber). The first order in 1963 (headstamped RA 63 or REM-UMC 63) consisted of 8.5 million rounds and was procured for testing, training and unconventional warfare use with the XM16 rifle. The cartridges came packed unclipped in white 20-round commercial ammunition cartons, packed 35 cartons (700 rounds) per M2A1 ammo can, and shipped two M2A1 cans (1400 rounds in total) per wire-bound plywood crate. Until the Army's adoption of the M193 Ball round, this was the only type of military 5.56mm ammunition available in the South-East Asia theater. US Navy & US Marine Corps Cartridge, Caliber 5.56 mm, Frangible, MK 255 MOD 0 [White Tip]: 5.56×45mm 62-grain Reduced Ricochet Limited Penetration (RRLP) round with copper/polymer composite core for training and operational use. Cartridge, Caliber 5.56 mm, Special Ball, Long Range, Mk 262 MOD 0/1: 5.56×45mm 77-grain Open-Tipped Match/Hollow-Point Boat-Tail cartridge. MOD 0 features Sierra Matchking bullet, while MOD 1 features either Nosler or Sierra bullet. Cartridge, 5.56×45mm, semi-jacketed Frangible, MK 311 MOD 0 : Reduced Ricochet Limited Penetration (R2LP) round, 50-grain frangible bullet intended for training. Produced by Western Cartridge Company (headstamp: WCC). Cartridge, Caliber 5.56 mm