Shaped charges for focusing a fluid mass

A shaped charge for focusing a fluid mass comprising:

• a plastic shell having a surface with a geometric shape configured to support a shape-conforming explosive, wherein the geometric shape comprises:
• a truncated cone having an open distal end and a closed proximal end, the closed proximal end having a smoothly-curved concave shape;
• an outer circumference with a plurality of cut-outs radially spaced around the outer circumference;
• wherein the geometric shape is axially-symmetric about a central longitudinal axis;
• a cylindrical plastic body having an interior volume for containing a liquid and the plastic shell, the cylindrical plastic body having:
• a plastic body closed distal end having a geometric shape that is substantially matched to the concave shape of the plastic shell closed proximal end;
• a plastic body proximal end that faces the plastic body distal end;
• wherein the plastic shell is concentrically positioned to the cylindrical plastic body with respect to the central longitudinal axis;
• a channel extending through the cylindrical plastic body proximal end and terminating at the plastic shell surface at a contact position coincident with the central longitudinal axis, wherein the channel is configured to accommodate a detonator;
• and
• a spherical projectile positioned adjacent to an exterior surface of the plastic body distal end and co-axially located with the central longitudinal axis, wherein the spherical projectile has an effective density matched to an effective density of the liquid positioned in the cylindrical plastic body interior volume.