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The Raufoss Mk 211 is a .50 BMG (12.7×99mm NATO) multi-purpose anti-material high-explosive incendiary/armor-piercing ammunition projectile produced by Nammo under the model name NM140 MP. [1] It is commonly referred to as multipurpose or Raufoss , meaning red waterfall in Norwegian.
Raufoss Mk 211. 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 called semi-armor-piercing high-explosive incendiary (SAPHEI). [1]
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. Until 1948 the company was a subordinate to the Norwegian Ministry of Defence.
The Mk 211 is a very popular .50 caliber sniper round used in the Barrett M82 rifle and other .50 BMG rifles. [5] It is also often used in heavy machine guns such as the M2 Browning. Due to its popularity several U.S. arms manufacturers produce the round under license from NAMMO Raufoss AS. [6]
In warfare, high-explosive incendiary (HEI) is a type of ammunition specially designed to impart energy and therefore damage to its target in one or both of two ways: via a high-explosive charge and/or via its incendiary (fire-causing) effects.
1956 Raufoss Ammunisjonsfabrikker explosion; C. Cali explosion; S. Sylvania Electric Products explosion This page was ...
The Raufoss Mk 211 (NM140 MP) .50 calibre ammunition is also heavy. The weight of the weapon, combined with a muzzle brake on the front end and a hydraulic buffer system in the butt, gives the AW50F a relatively low recoil and enhances accuracy.
[133] [134] There has been controversy surrounding the use of .50 caliber ammunition against enemy personnel, due to the explosive and incendiary Raufoss Mk 211 ammunition. The Saint Petersburg Declaration of 1868 states that the "military or naval" use of explosive or incendiary projectiles with a mass of under 400 g (14 oz) is forbidden by ...