The exclusive polymer coating in all-new American EagleA(R) Syntech(TM) prevents harsh metal-on-metal contact between the bullet and bore eliminating copper and lead fouling. Combined with clean-burning powders and the Catalyst(TM) lead-free primer Syntech loads keep your gun cleaner longer so you can shoot more-and shoot better.Freatures: Polymer-encapsulated Syntech bullet prevents metal-on-metal contact in the bore eliminating copper and lead fouling while extending barrel life Exclusive primer formulation provides reliable consistent ignition Clean-burning propellants minimize residue and fouling Significantly reduces the required frequency of cleaning Absence of a copper jacket minimizes splash-back on steel targets Less perceived recoil