Berry’s lead bullets are totally enclosed in 100% pure copper plating to cut down on airborne lead and reduce fouling, while costing much less than jacketed projectiles. Each bullet is swaged to size and weight, plated, and then swaged again to the specified diameter. Suitable for all standard pistol velocities.
1911, Issue:11, Page:070
Big Book Catalog, Issue:68, Page:540
Sinclair, Issue:5B, Page:106