X-Treme Bullets features copper plating applied electrochemically to a precision swaged lead core. The base of the bullet is also fully coated in copper, so there is no exposed lead or leading. We are confident that Wilson Combat Custom Ammunition is defensive and hunting ammunition without equal in the ammunition industry. Wilson Combat Custom Ammunition features: The highest quality, USA made brass cases, bullets, and other components Clean burning, low-flash powders for preserved night vision and reduced firearm maintenance Enhanced velocity loadings tailored to appropriate bullet construction for controlled expansion and deep penetration tested in real firearms, not test barrels 100% produced and rigorously "white glove" hand-inspected at our facility in Berryville, AR