Federal Premium Fusion was the first rifle ammunition specifically built for deer hunting- and it's still the best, offering the largest expansion and highest weight retention in head-to-head comparisons against the competition. With a molecularly bonded jacket and a pressure-formed core, Fusion transfers maximum energy on target. This ammunition is new production, non-corrosive, in boxer-primed, reloadable brass cases. FeaturesCopper jacket is electro-chemically bonded to the core, resulting in a perfectly uniform jacketExcellent accuracySkived, pre-programmed nose provides consistent expansionMaximum weight retention for deep penetration