Tournament Master® handgun bullets are built to satisfy the performance demands of serious competitors and recreational marksmen. The accuracy of these bullets, combined with unduplicated penetrating power, make them the bullet of choice for silhouette shooters and big game hunters worldwide. Sports Master® handgun bullets are engineered to provide consistent, reliable expansion over a wide range of velocities. Sierra has added a serrated "Power Jacket" on hollow cavity and hollow point bullets. On impact, the "Power Jacket" expands uniformly along the serration lines for consistent weight retention and maximum energy transfer.