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The 6.8mm Remington Special Purpose Cartridge (6.8 SPC, 6.8 SPC II or 6.8×43mm) is a rimless bottlenecked intermediate rifle cartridge that was developed by Remington Arms in collaboration with members of the U.S. Army Marksmanship Unit and United States Special Operations Command [6] to possibly replace the 5.56 NATO cartridge in short barreled rifles (SBR) and carbines.
The XM7, previously known as the XM5, is the U.S. Army variant of the SIG MCX Spear, a 6.8×51mm (.277 in), gas-operated, magazine-fed assault rifle [1] designed by SIG Sauer for the Next Generation Squad Weapon program in 2022 to replace the M4 carbine.
A U.S. Army graphic detailing the competitors for the program as of December 2020. The Next Generation Squad Weapon (NGSW) program is a United States military program created in 2017 by the U.S. Army to replace the 5.56mm M4 carbine, the M249 SAW light machine gun, and the 7.62mm M240 machine gun, with a common system of 6.8mm cartridges and to develop small arms fire-control systems for the ...
The military designation for this round is 6.8 common cartridge. [5] The XM1186 is the general-purpose 6.8 mm round, with other versions including reduced range rounds so weapons chambered in 6.8 mm can fire on existing ranges designed for the 5.56 mm, marking rounds for force-on-force shooting, and blank and tracer rounds.
The XM250 is the U.S. military designation for the SIG LMG 6.8, a 6.8×51mm (.277 in), gas-operated, belt-fed light machine gun designed by SIG Sauer for the U.S. Army's Next Generation Squad Weapon Program in 2022 to replace the M249 light machine gun.
HAMR NGSW (Heat Adaptive Modular Rifle) – 6.8mm Federal Cartridge Company cartridge variant entered in the United States Army's Next Generation Squad Weapon Program competition, it was beaten by the XM5 (later redesignated XM7), a SIG MCX Spear variant. Mk 17 Mod 1 6.5mm Creedmoor battle rifle entered in the SOCOM Mid-Range Gas Gun program ...
The US Army conducted testing of telescoped ammunition, polymer-cased ammunition, and caseless ammunition for future service cartridges. [16] As of 2022, the candidate for US Army universal cartridge is the 6.8×51mm Common Cartridge, selected by the US Next Generation Squad Weapon Program.
United States no 1982 Colt Advanced Piston Carbine: Colt's Manufacturing Company: 5.56×45mm NATO United States yes 2010s-present Colt CM901: Colt Defense: 5.56×45mm NATO 6.8mm Remington SPC 7.62×39mm United States c.2012–present Colt MARS Colt: 5.56×30mm Mars United States 1997 Conventional Multirole Combat Rifle: ST Kinetics: 5.56×45mm NATO