Disintegrating training ammunition for firearms

Claim 1

A PROJECTILE FOR PRACTICE AMMUNITION ADAPTED FOR FIREARMS, SAID PROJECTILE COMPRISING AN LEONGATED DISINTEGRATING BULLET FORMED OF TWO PARTS, ONE PART CONSISTING OF A HOLLOW CYLINDRICAL BASE MEMBER OF UNIFORM EXTERIOR DIAMETER CLOSED AT ONE END AND OPEN AT ITS OTHER END, SAID LAST NAMED OTHER END BEING PROVIDED WITH AN OUTER CONICAL SURFACE, THE OTHER PART OF SAID BULLET CONSISTING OF A HOLLOW NOSE MEMBER PROVIDED WITH A HOLLOW CYLINDRICAL PORTION OF THE SAME EXTERIOR DIAMETER AS SAID BASE MEMBR, SAID HOLLOW CYLINDRICAL PORTION HAVING ITS OPEN END PROVIDED WITH AN INNER CONICAL SURFACE WHICH ENGAGES TIGHTLY THE OUTER CONICAL SURFACE ON SAID HOLLOW CYLINDRICAL BASE MEMBER, SAID INNER CONICAL SURFACE BEING SURROUNDED BY AN OUTWARDLY PROJECTING CYLINDRICAL GUIDE BAND FORMED INTEGRALLY WITH SID HOLLOW NOSE MEMBER, SAID NOSE MEMBER HAVING AT ITS CLOSED END A FLAT SURFACE WHICH MERGES WITH A CIRCUMFERENTIAL CONVEX WALL INTO THE CYLINDRICAL PORTION OF SID NOSE MEMBER, SAID UNITED BASE MEMBER AND NOSE MEMBER PROVIDING A SINGLE CHAMBER THEREIN HAVING SUBSTANTIALLY THE SAME DIAMETER FROM THE BASE MEMBER TO THE CONVEX WALL PORTION OF SAID NOSE MEMBER, AND A CORE FORMED OF METAL POWDER HAVING THE SHAPE OF SAID CHAMBER CONTAINED WITHIN SAID CHAMBER.