The invention relates to a weapon equipment comprising a launcher and a projectile (25), the projectile (25) having a weight of between 750 g and 1000 g, the projectile (25) comprising an operating head (26) and a tail (40), the tail (40) comprising: an aluminum alloy tube (41) having an inside diameter (Di) of between 21.5 mm and 22.5 mm, a stroke (c) between first (E1) ) and second (E2) locations between 110 mm and 120 mm, and a thickness (e) in the vicinity of the first location (E1) between 4.6 mm and 5 mm, a piston (60) movable between the first (E1) ) and second (E2) locations and defining with the tube (41) a hermetically closed propellant chamber (65), a propellant charge (70) disposed in the propulsion chamber (65), the propellant charge (70) comprising a powder having a heat of combustion of between 3500 J / g and 4000 J / g, the propellant charge (70) having a strictly superior mass at 2.4 g and less than 3.7 g.
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