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A spitzer bullet (from German: Spitzgeschoss, "point shot") is a munitions term, primarily regarding fully-powered and intermediate small-arms ammunition, describing bullets featuring an aerodynamically pointed nose shape, called a spire point, sometimes combined with a tapered base, called a boat tail (then a spitzer boat-tail bullet), in order to reduce drag and obtain a lower drag ...
The US Air Force used 2.75 in (70 mm) rockets with WDU-4/A flechette warheads. [citation needed] The 70 mm Hydra 70 rocket currently in service with the US Armed forces can be fitted with an anti-personnel (APERS) warhead containing 1,179 flechettes. [14] They are carried by attack helicopters such as the AH-64 Apache and the AH-1 Cobra.
Projectile: Full metal projectiles should be made of a material with a very high density, like uranium (19.1 g/cm 3) or lead (11.3 g/cm 3).According to Newton's approximation, a full metal projectile made of uranium will pierce through roughly 2.5 times its own length of steel armor.
The German Army version of the 4.6×30mm cartridge (DM11 Penetrator) [8] weighs 6.5 g and uses a 2-g copper-plated steel bullet projectile at 720 m/s (2,362 ft/s) muzzle velocity. The DM11 Penetrator cartridge is designed for the MP7.
It has an effective range of 75 m to 5000 m, and takes 17.6 seconds to reach maximum range. Refleks can penetrate about 900 millimetres (35 in) of steel armour and can engage low-flying air targets such as helicopters. [14] Country of origin: Soviet Union; Projectile weight: 16.5 kg; Warhead weight: 4.5 kg; Guidance system: Laser beam riding
Alternatively if released at high altitudes over 10,000 feet (3,000 m), the projectile will approach its terminal velocity of around 700 feet per second (210 m/s; 480 mph; 770 km/h). [6] [2] A variant version of the "Lazy Dog" projectile was developed for the recoilless rifle. Development was suspended because another type of flechette was used ...
A copper-plated hollow-point loaded in a .44 Magnum, for example, with an original weight of 240 grains (15.55 g) and a diameter of 0.43 inch (11 mm) might mushroom on impact to form a rough circle with a diameter of 0.70 inches (18 mm) and a final weight of 239 grains (15.48 g).
Force (pressure times area) provides an acceleration to the mass of the projectile. Therefore, for a given pressure and barrel diameter, a lighter projectile can be driven from a barrel to a higher muzzle velocity than a heavier projectile. However, a lighter projectile may not fit in the barrel, because it is too thin.