Dummy practice grenade

A dummy practice rifle grenade, comprising:

• a generally cylindrical nose cone having a central axis;
• a cylindrical body having a central axis and having a front portion having a perpendicular front wall, a central portion, and a rear portion having a perpendicular rear wall;
• and
• a finned tail;
• said nose cone having a front cone portion tapering axially inward to a front flat perpendicular to said axis, a central cylindrical portion extending rearwardly from said front cone portion, and an inner taper portion extending rearwardly from said central cylindrical portion and tapering axially inwardly to a rear flat perpendicular to said axis;
• said nose cone having a rear opening rear axial bore having a first diameter extending forward to the intersection of said cylindrical portion and said inner taper portion, and having a central axial bore having a second diameter smaller than said first diameter opening into said rear axial bore and extending forward to a front wall located within said central cylindrical portion, said rear axial bore and said central axial bore forming a cone inner step disposed perpendicular to said axis;
• said cylindrical body front portion extending into said nose cone along said rear axial bore and affixed thereto, said front wall resting against said cone inner step forming a volume defined by said cylindrical body front wall, said central axial bore, and said central axial bore front wall, said volume containing lead shot;
• said cylindrical body rear portion and central portion having a rear opening axial bore extending therethrough of such diameter as to receive a launching rifle nose;
• said finned tail having a cylindrical portion coaxial with said cylindrical body and having a front surface and a rear surface and having a plurality of radially extending outward therefrom;
• said tail cylindrical portion extending over said rear portion of said cylindrical body and affixed thereto.