The question is will the cartridge be polymer cased or telescoping polymer based? I am pretty sure it will be one of the above.
It does appear that it will be a 6.8 that will shoot light for caliber bullets at higher pressure and velocity than the 6.5 SPC II.
They are actually going for 270 ballistics in a platform no larger or heavier than current AR rifles.
It is ironic that they went with a .277 caliber when the best BC bullets are 6.5 or 7mm. But the fact that they are using light for caliber bullets at distances of 500 meters or less negates any advantage of higher BC bullets in 6.5 or 7mm.
It appears that the military went with the Campfire concensus,within 500 yards,nothing really beats a 270.
