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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. Each round has both capabilities.
Some explosive projectiles, such as high-explosive incendiary bullets, contain an incendiary charge intended to ignite explosives within the shell. [9] Although not intended to start fires, tracer bullets can have a mild incendiary effect. This is particularly dangerous when they strike flammable substances or dry brush.
The triggering of the explosive charge is dependent upon the resistance of the target. If the target offers little resistance then the lack of frictional heating will prevent the incendiary from igniting and the high explosive from detonating. Exploding ammunition was used by both Allied and German forces during World War II.
An explosive charge would then ignite the incendiary material, often starting a raging fire. The fire would burn at extreme temperatures that could destroy most buildings made of wood or other combustible materials (buildings constructed of stone tend to resist incendiary destruction unless they are first blown open by high explosives).
A shaped charge is an explosive charge shaped to focus the effect of the explosive's energy. Different types of shaped charges are used for various purposes such as cutting and forming metal, initiating nuclear weapons , penetrating armor , or perforating wells in the oil and gas industry .
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.
The M795 is a 155 mm high-fragmentation, steel (HF1)-body projectile, filled with 10.8 kilograms (23.8 lb) of TNT.It weighs approximately 47 kilograms (103 lb). The high-fragmentation steel body is encircled by a gilding metal rotating band, making it compatible with 3W through 8S (M3A1 through M203A1) zone propelling charges across all current 155 mm howitzers.
R1AFA = 120 rounds of 20 mm High Explosive-Incendiary M97 (T23) Cartridge with M75 (T71E5) Point-Detonating Fuze. 10 rounds per moisture-sealed fiberboard container, 12 containers per wooden packing crate. Net Weight = 68.4 lbs. Gross Weight = 95 lbs. Volume = 1.45 cubic feet.