Non-toxic, non-corrosive rimfire cartridge

A rimfire cartridge which comprises:

• a shellcase having an open front end, a closed rear end and an annular hollow rim open to an interior space of the shellcase at the closed end, an essentially lead-free metallic bullet mounted in and closing the open end;
• a non-toxic propellant granular powder partially filling the interior of the shellcase between the bullet and the closed end;
• a primer disposed in the rim which primer consists essentially of a lead-free, non-toxic, non-corrosive mixture of dinol, manganese dioxide, tetrazene and glass;
• and a sheet of compacted propellant disposed adjacent to the primer for assisting in the ignition of the powder.