Since June, the Army has fielded about 30 million of its new 5.56mm M855A1 “Enhanced Performance Rounds” in Afghanistan.
The cartridge, sometimes called the “green bullet” because it has an environmentally-friendly copper core instead of the traditional lead, has been getting mostly good reviews in the 11 months since it first deployed to Operation Enduring Freedom.
‘Green Bullet’ As Effective As M855 Round—Consistently
May 11, 2011