To produce consistent mid to long-range non-toxic shot patterns, it is critical to diffuse the setback energy of pellets and allow for the pellet mass to readily adjust to constriction. Alternative non-toxic materials like bismuth, BPX Devastator, SpheroTungsten, and other tungsten blends produce much more friction than lead. Therefore, special materials must be used to enhance their performance.

Specialized energy-absorbing and lubricating materials in BSB Buffer provide the foundation for bismuth and tungsten pellets during initial setback and throughout the transition into a pattern.