2010年2月17日 · Commonly known as “SOST” rounds, they were legally cleared for Marine use by the Pentagon in late January, according to Navy Department documents obtained by Marine Corps Times. SOCom developed the new rounds for use with the Special Operations Force Combat Assault Rifle, or SCAR, which needed a more accurate bullet because its short barrel ...

2010年2月17日 · The new SOST ammo was first developed for use by SOCOM (Special Operations) in the SCAR rifle, which has a short, 13.8″ barrel. Even in short-barreled rifles, the SOST provides impressive ballistics — achieving 2925 fps in a 14″ barrel. Compared to M855 ball ammo, SOST rounds are more lethal when shot from short-barreled rifles.

2024年2月26日 · The round was designed to have better terminal performance and accuracy from short barreled rifles with a muzzle velocity of 2925 fps from the 14.5 inch M4 barrel. The round is a OTM, this is important to remember as it is not the same as a hollow point. It does however, offer up better performance and is barrier blind.

2024年5月5日 · MK318 ammo, also known as the SOST (Special Operations Science and Technology), is a type of 5.56mm rifle ammunition used by the United States military. It is designed to provide superior performance, accuracy, and terminal effectiveness compared to standard military ammo.

2011年5月16日 · The SOST (Special Operations Science and Technology) round round started out as a spin off of the Army's new M855A1 which was taking too long to get into service for the Marine Corps tastes. It is a 62 grain open tip round (not to be confused with hollow point) designed to be "barrier blind".

2020年10月5日 · This new SOST round designated as MK319 MOD-0 the round was designed as a barrier defeating round with superior penetration and better ballistic stability when shooting through glass, car doors and other barriers where other rounds simply bounce off. It utilizes a 130 grain open tip boattail match bullet with a lead core and reverse

2010年3月13日 · The new SOST round (Special Operations Science and Technology) is a more deadly and more accurate round - especially when fired in the Corps' shorter barreled rifles. Initially, the SOST was only cleared for use by the Special Operations Command troops (SOCOM) with their Special Operations Force Combat Assault Rifle (the SCAR).

2010年2月1日 · Officially designated the Mk318 Mod 0 "Cartridge, Caliber 5.56mm Ball, Carbine, Barrier", and called SOST (Special Operations Science and Technology) ammunition, the 62-grain bullet fragments consistently, even out of a 10.5 in barrel.

2010年9月26日 · This new SOST round from ATK/Federal Cartridge and was engineered for the USMC as a supplemental/replacement round to M855 green tip with more desirable terminal characteristics. Designated as MK318 MOD-0 the round was designed as a barrier defeating round with superior penetration and better ballistic stability when shooting through glass, car ...

Designated as MK318 MOD-0 the round was designed as a barrier defeating round with superior penetration and better ballistic stability when shooting through glass, car doors and other barriers where other rounds simply bounce off. It was engineered after the Marine Corp identified issues with the M855 round.