Download the Rebate Form: 20% Off Federal CenterfirePractical hunters trust FederalA(R) Power-Shok rifle ammunition to deliver performance that fills the freezer. New Power-Shok Copper provides that same consistency in a non-lead bullet. The accurate hollow-point copper projectile creates large wound channels and the all-new Catalyst(TM) lead-free primer provides the most efficient and reliable ignition possible. Look for Power-Shok Copper in a variety of the most popular hunting calibers.