Air rifle ammo is typically composed of PELLETS, BBs, and BBShot. PELLETS are 6-letter cylindrical projectiles made of lead or other materials, while BBs are 6-letter spherical projectiles made of steel or other materials. PELLETS are also known as 7-letter PELLETS, while BBs are also known as 3-letter BBS. BBShot is a 6-letter projectile made of metal or other materials. All of these types of air rifle ammo are designed to be fired from an air rifle.