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However, some manufacturers continue to coat their bullets with various compounds, notably Teflon and molybdenum disulfide, as a protective layer against barrel wear. Not a lot of performance data is available for these bullets, although the 9mm offering was reputed to push a 100- grain (6.5 g) projectile at a velocity of 1,350 feet per second ...
Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora.Developed by Stephanie Kwolek at DuPont in 1965, [3] [2] [4] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
The term bullet resistance is often preferred because few, if any, practical materials provide complete protection against all types of bullets, or multiple hits in the same location, or simply sufficient kinetic (movement) energy to overcome it.
Fabric panel (level II protection) in the back is made of 30 layers of TSVM-2 Kevlar-like material and provides protection against bullets from TT pistol (cartridge 57-N-134S) and PMM (cartridge 7N16) from 5 meters, has increased anti-fragmentation resistance (fragment weighing 1 g at a speed of 600 m/s, 50 %,). [1] [5] Weight is 4 kg. [2]
Later, using computer simulation, several prototypes of the helmet were made, which were submitted for shooting tests. The reference sample of the tested variant of the bulletproof helmet (which was later called "Kaska-1M") withstood five hits of bullets of the 9 × 19 mm "Parabellum" cartridge, fired from a distance of 5 meters. [1]
The fiber is an evolution of the original Kevlar fiber. The following quotes summarize Kevlar KM2's properties. "DuPont created Kevlar KM2 to achieve the performance goals defined by casualty reduction testing for the United States Department of Defense. Today it is used extensively for fragmentation protection in the U.S. military. Helmets and ...
The OTV features a carrier shell, and three main (flexible) ballistic panel inserts (front left and front right panels, and a rear back panel), [4] which are made with a finely woven Kevlar KM2 fiber. These two parts of the vest are both bullet and heat resistant and offer protection similar to the earlier PASGT flak jacket.
A ballistic face mask, is designed to protect the wearer from ballistic threats. Ballistic face masks are usually made of kevlar or other bullet resistant materials and the inside of the mask may be padded for shock absorption, depending on the design. Due to weight restrictions, protection levels range only up to NIJ Level IIIA.