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.

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It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

If you live in AK, CA, CT, DC, HI, IL, MA, MD, NJ, or NY, please read our ammo shipping restrictions before placing your order.

You must be 18 years or older to purchase rifle ammunition.
You must be 21 years or older to purchase handgun ammunition.

All California ammunition orders need to be shipped to an FFL and will be charged a 25% restocking Fee. More CA Info

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).