Underwood Ammo Xtreme Defender is an evolution of the renowned Xtreme Penetrator line, engineered for unparalleled terminal performance. Featuring an optimized nose flute design, ideal weight distribution and high velocity, this solid copper projectile achieves up to 18 inches of penetration with an absolutely massive permanent wound cavity (PWC). Unlike traditional hollowpoints, the Xtreme Defender's PWC is over 100% larger and maintains its effectiveness even after passing through barriers such as wallboard, sheet metal and automotive glass. Housed in nickel-plated brass casings, this ammunition offers smoother feeding, superior corrosion resistance and an enhanced appearance. Unlike standard brass, our nickel plating prevents tarnishing and resists moisture, leather and other contaminants, ensuring long-term reliability. Every round is loaded with flash-suppressed powder, preventing muzzle flash from compromising your vision in low-light situations. As with all Underwood Ammo products, the Xtreme Defender is rigorously tested in real-world conditions using firearms that our customers trust, delivering unmatched performance and reliability.