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EPVAT is an abbreviation for "Electronic Pressure, Velocity and Action Time" (French "Pression électronique, vitesse et durée d’action"). Action Time here means the (short amount of) time required between the ignition of the primer and the projectile leaving the barrel. This is a comprehensive procedure for testing ammunition using state-of ...
The 5.56×45mm NATO standard SS109/M855 cartridge was designed for maximum performance when fired from a 508 mm (20.0 in) long barrel, as was the original 5.56 mm M193 cartridge. Experiments with longer length barrels up to 610 mm (24.0 in) resulted in no improvement or a decrease in muzzle velocities for the SS109/M855 cartridge.
The FN F2000 is a 5.56×45mm NATO bullpup rifle, designed by FN Herstal in Belgium. [5] Its compact bullpup design includes a telescopic sight, a non-adjustable fixed notch and front blade secondary sight. The weapon has fully ambidextrous controls, allowed by a unique ejection system, ejecting spent cartridge casings forward and to the right ...
NATO defines 5.56mm, 7.62mm, 9mm, and 12.7mm using the NATO EPVAT test methods, which includes pressure testing. Unlike the civilian testing methods NATO EPVAT testing procedures for the "NATO rifle chamberings" require the pressure sensor or transducer to be mounted ahead of the case mouth.
7.62×51mm NATO Ball (Ball M80) at 30 meters with velocity 833 m/s [1] [2] 5.56×45mm NATO Ball (SS109) at 30 meters with a velocity of 900 m/s 5.56×45mm NATO Ball (M193) at 30 meters with a velocity of 937 m/s Protection against all three threats must be provided.
Type 84 – Export version of the Type 56 rifle chambered for the 5.56×45mm NATO round. Also has underfolder (Type 84-1) and sidefolder (Type 84-2) versions. Civilian semi-auto version known as Type 84S and AKS-223. Special matte black synthetic versions were also available as the Type 84-3, Type 84-4 (underfolder) and Type 84-5 (sidefolder).
Bullpup assault rifle China 1997–present 5.56×45mm NATO variant of QBZ-95. Norinco AK-2000: Assault rifle China 2000s-present Copy of the AK-101. QBZ-03: Assault rifle China 2003–present Export variant is chambered in 5.56×45mm NATO. QBU-97A: Semi-automatic bullpup sniper rifle China 1997–present 5.56×45mm NATO variant of QBU-88. Galil ...
The SG 550 is a selective-fire 5.56×45mm NATO assault rifle firing from a closed bolt. It has a gas-actuated piston-driven long-stroke operating system derived from the SIG SG 540 series of rifles, which uses burnt powder gases vented through a port in the barrel to power the weapon's moving parts. Once inside the gas cylinder, propellant ...