The Raufoss Mk 211 is a
.50 BMG (12.7×99mm NATO) multi-purpose
anti-materiel
An anti-materiel rifle (AMR) is a rifle designed for use against military equipment, structures, and other hardware (materiel). Anti-materiel rifles are chambered in significantly larger calibers than conventional rifles and are employed to elimi ...
high-explosive incendiary/armor-piercing ammunition
High-explosive incendiary/armor-piercing ammunition (HEIAP) is a form of shell which combines armor-piercing capability and a high-explosive effect. In this respect it is a modern version of an armor-piercing shell. The ammunition may also be cal ...
projectile
A projectile is an object that is propelled by the application of an external force and then moves freely under the influence of gravity and air resistance. Although any objects in motion through space are projectiles, they are commonly found i ...
produced by
Nammo
Nammo, short for Nordic Ammunition Company, is a Norwegian/Finnish aerospace and defence group specialized in production of ammunition, rocket engines and space applications. The company has subsidiaries in Finland, Germany, Norway, Sweden, Switze ...
under the model name ''NM140 MP''. It is commonly referred to as ''multipurpose'' or ''Raufoss'', meaning ''
red waterfall'' in Norwegian. This refers to Nammo's precursor company
Raufoss Ammunisjonsfabrikker Raufoss Ammunisjonsfabrikker was a Norwegian company based at Raufoss, established in 1896 as ''Rødfoss Patronfabrik''. Initially the company manufactured ammunition, and later also other products, such as aluminium parts to the automotive industry ...
, an ammunition manufacturer established 1896 in Raufoss, Norway. The "Mk 211" name comes from the nomenclature ''Mk 211 Mod 0'' used by the
U.S. military
The United States Armed Forces are the military forces of the United States. The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. The president of the United States is th ...
for this round.
Design details
The multipurpose concept developed by Raufoss is unique in that, instead of using a mechanical
fuse
Fuse or FUSE may refer to:
Devices
* Fuse (electrical), a device used in electrical systems to protect against excessive current
** Fuse (automotive), a class of fuses for vehicles
* Fuse (hydraulic), a device used in hydraulic systems to prote ...
, it uses a