The Underwood Ammo 10mm Handgun Ammo - 140 Grain | Xtreme Penetrator is a top-tier choice for those seeking high-performance ammunition for both self-defense and hunting applications. Engineered for the 10mm Auto cartridge, this ammunition features a 140-grain copper bullet, ensuring a lead-free shooting experience that aligns with modern environmental standards. The Xtreme Penetrator bullets are designed to deliver exceptional penetration, making them ideal for situations where stopping power is crucial. With a diameter of 0.4 inches, these bullets are crafted to achieve a high velocity of 1500 feet per second, classifying them as supersonic handgun ammo that travels faster than the speed of sound. The nickel-plated brass casing not only enhances durability but also ensures smooth feeding and extraction, making it reliable in high-pressure scenarios. This self-defense 10mm ammo boasts a muzzle energy of 700 ft-lbs, providing the necessary force to neutralize threats effectively. Additionally, the ammunition's sectional density of 0.125 and a ballistic coefficient that ensures stability in flight make it a formidable choice for hunting handgun ammo. Safe for use in suppressors, this copper bullet ammo is versatile and adaptable to various shooting conditions. Each box contains 20 rounds, offering ample supply for practice or field use. Manufactured by Underwood Ammo, this high-velocity 10mm ammo is a testament to precision engineering and reliability, making it a preferred choice for discerning shooters. Whether for personal protection or hunting, the Underwood Ammo 10mm Handgun Ammo delivers unmatched performance and peace of mind.