Underwood Ammo XTP rounds are engineered for superior power, accuracy and reliable terminal performance. Built around Hornady's eXtreme Terminal Performance (XTP) bullets, these rounds deliver deep penetration, precise accuracy and controlled expansion for maximum stopping power. By combining Hornady's proven XTP design with our own meticulously formulated load data, we've created a round that performs with lethal efficiency. Our nickel-plated brass casings provide key advantages, including smoother feeding across all firearm actions, enhanced corrosion resistance compared to traditional brass and improved aesthetics. They also resist tarnishing from exposure to moisture, leather and other materials, ensuring long-term durability and easier clean-up for reloaders. Like all Underwood Ammo products, these rounds feature flash-suppressed powder to preserve your night vision in low-light situations. We rigorously test every load with real firearms in real-world conditions to ensure unmatched reliability, so you can trust your ammunition when it matters most.