having an improved liner for a shaped charge constructed from a combination of powdered heavy metal and metal binder powdered heavy metal and metal binder is formed into a rigid shaped charge liner under very high pressure the metal binder may be in powdered form or may be used to coat the powdered heavy metal particles prior to formation the liner may also contain a relatively small percentage of other material to enhance lubrication or corrosion resistance application_number US 81079201 A description the present inventions are described by reference to drawings showing one or more examples of how the inventions can be made and used in these drawings reference characters are used throughout the several views to indicate like or corresponding parts the drawings are not necessarily to scale and the proportions of certain parts have been exaggerated to better illustrate details and features of the invention the apparatus and methods of the invention are shown generally in fig1 and 2 a conically symmetrical shaped charge 10 is shown the shaped charge is sized for a perforating gun commonly used to perforate subterranean wells and formations typically a plurality of shaped charges are arranged in a substantially helical pattern on the perforating gun assembly the exact size and shape of the shaped charge or the configuration of the perforating gun are not critical to the invention the shaped charge 10 is enclosed by a case 12 generally the case 12 is substantially cylindrical or conical as used herein the term u201c conical u201d is used to refer to shapes substantially conical or in the form of frustum or truncated cone again the exact shape of the case is not critical to the invention in use the perforating gun not shown is.