A cartridge has a shell casing with a primer end and a projectile end. A projectile mounted in the projectile end is made of four segments held together by first and second retainer rings. In one form each segment contains shot. One form of the projectile has an air brake which is deployed as the projectile leaves the muzzle. The air brake is partially deployed or fully deployed, depending of the shredding of third and fourth retainer rings which hold the air brake. When the shredder is inserted in a barrel in a first position, the last horizontal retainer ring is shredded and the air brake is partially deployed. When the shredder blades are further positioned in the barrel, both retainer rings which hold the air brake are shredded and the air brake is fully deployed. Additional positions of the shredder ring first shred the second ring, releasing the segments, and then shred the first retainer ring, releasing the shot and other contents from the segments.