a simple , inexpensive , device and method of use thereof for disrupting the jet of a shaped charge and thereby significantly reducing the penetrating capability by over 90 % thereof ; thus providing a means to mitigate the damage caused by the premature or accidental jetting of the shaped charge . the device has a central support , along which radiate a plurality of increasing radius , generally hemi - circular , thin discs — such that the outline of the disc edges thereof form a cone that models the interior of the hollow open mouth of the shaped charge — importantly , the discs are staggered along the length of the central support . the device , which can be molded of inexpensive plastic , must be lodged fully within the hollow open mouth of the shaped charge at the time of the premature or accidental jetting — to provide the desired mitigation .