These lead cast bullets are made from 92-6-2 alloy and are then coated in Hi-Tek coating. The benefits to shooting are numerous and include: The coating molecularly bonds to the bullet totally encapsulating it. Coating prevents lead to bore contact. Less smoke as associated with traditional lubed bullets. Range Friendly!! Bullets feed well in automated bullet feeders. Shoot higher velocities without lead fouling. Can be shot through polygonal rifling.