high explosive squash-head HESH
a type of antitank missile or gun projectile which relies on the size and shape of the explosive charge rather than high velocity to achieve its destructive effect. The ammunition incorporates plastic explosives in a ballistically capped round. The round strikes a hard surface and the cap flattens the round evenly onto the surface. A piezoelectric crystal in the base shatters on striking the armor surface, detonating the plastic explosive.... ...
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