| http://www.w3.org/ns/prov#value | - With these and other objects in view, which will be come apparent in the following detailed description, the present invention will be clearly understood in connection with the accompanying drawing, in which: FIG. 1 is a schematic fragmentary section through a hollow charge insert; FIG. 2 is a hollow charge with a progressive insert; and FIGS. 3 and 4 are further inserts with progressive and degre
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