07-17-2015, 05:48 AM
biodsl Wrote:What am I missing here? Higher lethality? Is a 6.5 bullet less lethal than 7.62? Why not just go to a 6.5 full-power cartridge (performance akin to the .260 or 6.5 Creedmoor) to take advantage of increased speed and BC and drop the .30 cal altogether?It appears to me that the Army considers 6.5mm to be a viable upgrade from 5.56mm for carbines, but they're not comfortable with a reduction in caliber from 7.62mm for machine guns.