10mm Auto 200gr. eXtreme Terminal Performance (XTP . . . - Underwood Ammo Underwood Ammo™ XTP rounds are notable for their power and accuracy We utilize Hornady eXtreme Terminal Performance (XTP) bullets which are designed for deep terminal penetration, great accuracy and controlled expansion We combine Hornady unparalleled XTP bullets with our own carefully formulated design which results in one lethal round Nickel-plated brass casings, our nickel plating
About Us - Underwood Ammo Kevin Underwood started Underwood Ammo in 2013 after seeing a need in the market for better ammunition at a reasonable price