The Underwood Ammo Xtreme Defender takes performance to the next-level, building on the success of the Xtreme Penetrator with enhanced design and optimized ballistics. Its precision-engineered nose flute, weight and velocity deliver controlled, deep penetration up to 18 inches, while creating an enormous Permanent Wound Cavity (PWC) that outperforms traditional hollow points. Unlike conventional expanding bullets, the solid copper XD excels through barriers like wallboard, sheet metal and auto glass without losing effectiveness. Nickel-plated brass casings ensure smooth feeding, superior corrosion resistance and easy clean-up. Flash-suppressed powder preserves night vision in low-light scenarios. Field-tested in real-world conditions, the Xtreme Defender is built for those who demand unmatched stopping power and reliability.