To initiate the program, the companies involved in the development agreed to do so at their own expense, with the goal that the final product would provide US servicemen with a better capability and morale boost to combat the Global War on Terrorism (GWOT).
The assessment of the initial performance capabilities of the prototype cartridges, based on shortened commercial .30 Remington cases, was handed over to the USAMU Ammunition Section, headed by Troy Lawton.
Early experimental production of ammunition began at Remington in the first quarter of 2002, and went into full production in August, 2003.
During this time period several ballistic performance assessments, including accuracy and reliability- incapacitation tests, were conducted.
That round is the 6.8mm Remington Special Purpose Cartridge.
It is very curious to me that a round that was designed with an accurized designated marksman’s rifle in mind also features such a short ogive and low muzzle velocity.
Typically, medium/long range precision weapons platforms place a premium on both the ballistic coefficient and velocity of the projectile, seeking to obtain as laser-like a trajectory and as high a retention of energy as possible. The ogive of a bullet is the curved portion of the projectile that is exposed outside the case.
Even when magazines allowing longer ogives are used – which it should be noted also would allow the use of longer and finer 5.56mm projectiles – the available relative space is still not significantly greater than that of the 5.56mm and 7.62x39mm cartridges.
Further, as of yet there do not seem to be any manufacturers making .277″ projectiles with ogives designed for these longer magazines, and thus they only offer a velocity advantage to handloaders seating existing short-ogive bullets less deeply in the case.