For decades the U.S. military’s rifles and machine guns have chambered either 5.56mm or 7.62mm rounds. Now, the Army’s newest weapons are being tested to fire a new caliber bullet that’s faster and more accurate to give soldiers an edge over their adversaries.
The Army is not saying exactly what types of defenses that this new bullet is meant to penetrate, but last year Army Chief of Staff Gen. Mark Milley told lawmakers that some types of body armor can stop a 5.56mm round.
“We have to change because of the threats that we face on the battlefield – and I’m not going to go any deeper than that,” said Brig. Gen. Christopher Donahue, director of the Army’s soldier lethality cross functional team. “Our reason for change is based off of threat.”