Shotgun or smooth bore projectile, has hollow front section connected by location of intentional breakage to rear section which slides into it during firing

摘要

A shotgun or smooth bore projectile has hollow front section (5). It is connected by a location of intentional breakage (14) to the central section (6). During firing, the central section slides into the cavity of the front section, until the top (19) of the rear section (7) strikes the underside (20) of the front section.