Federal PowerShok, 308 Win, 150 Grain, Copper, Lead Free, 20 Round Box, California Certified Nonlead Ammunition 308150LFA Practical hunters trust Federal(R) PowerShok(R) rifle ammunition to deliver reliable on-game performance that fills the freezer at an attractive price. PowerShok Copper provides that same consistency and value in a non-lead bullet. The loads feature an accurate hollow-point copper-alloy bullet that creates large wound channels, as well as Federal brass and primers. Look for PowerShok Copper in a variety of the most popular hunting calibers.