https://gazette.com/military/army-mi...767a4.amp.html
four 6 mm barrels cut side by side within one steel block. New ammunition blocks fired by electromagnetic actuators that could theoretically give the weapon a firing rate of 250 rounds per second.
And then there’s the feature no soldier would turn down. “It’s called a power shot,” Grier said.
That’s the shotgun feature of this sniper-shot, machine-assault gun that can send four bullets simultaneously whizzing toward an enemy at more than 2,500 mph.