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3UP4
The 3UP4 (3УП4) is a Soviet era-developed, Russian Federation, 100 mm fixed (unitary) fin-stabilised tracer practice round, which is thought to have been adopted in 1960. The 3UP4 round comprises: 3P7 (3П7) projectile; an inert fuze that emulates the GPV-2 (ГПВ-2) point-initiating base-detonating (PIBD); a cartridge case; and a propellant charge assembly. The 3P7 projectile emulates the 3BK3/3BK3M (3БК3/3БК3М) high explosive anti-tank fin-s...
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