5mm round

The 5mm round is an ammunition type found in Fallout, Fallout 2, Fallout 3, Van Buren, Fallout: New Vegas, Fallout 4, and Fallout 76. It is used by various weapons, such as miniguns and assault rifles.

Background
A high velocity round designed for assault rifles, the intermediate 5mm M134 cartridge has been replaced by the more powerful 5.56mm round in assault rifles. However, it found a new life as linked, belt fed ammunition for man-portable miniguns on the battlefield, specifically the M134 cartridge and is stored in downscaled ammo boxes designed for the 7.62x51mm NATO cartridge in Fallout 4 and Fallout 76. It has also been retained as the ammunition of choice for certain models of assault rifle and paratrooper assault carbines, due to its light weight and portability. 

5mm round


Ammunition. Caliber: 5mm.

5mm round, armor piercing


Ammunition. Caliber: 5mm, armor piercing.

5mm round JHP


Ammunition. Caliber: 5mm, jacketed hollow point.

5mm round, hollow point


Ammunition. Caliber: 5mm, hollow point.

5mm round, surplus


Ammunition. Caliber: 5mm, surplus.

5mm, JSP (hand load)


Ammunition. Caliber: 5mm, jacketed soft point.