Hollow charges

A hollow charge, comprising:

• a casing having a cylindrical shape and extending in an axial direction;
• a liner coaxially disposed within said casing, said liner having a conical configuration with a vertex of said liner positioned centrally within said casing, said liner having a progressive thickness between a base thereof and said vertex, said thickness being greater at said base than at said vertex of said liner;
• a monoblock subassembly coaxially disposed within said casing and spaced axially further from said base than from said vertex of said liner, said monoblock subassembly including a cylindrical primer block of explosive material and an inverted shield fitted in a recess on a surface of said primer block facing said liner, said inverted shield having a maximum diameter at said surface of said primer block and having an ogival shape extending into part of said primer block;
• and
• a main explosive charge disposed in said casing between said liner and said monoblock subassembly;
• whereby said ogival shield provides a triggering effect assuring preorientation of detonation waves generated by said primer block and an angle of the detonation waves striking said liner can be adjusted by changing the axial distance between said monoblock subassembly and said vertex of said liner.