The Xtreme Hunter was born from the popular Xtreme Defender product line. Like the XD the Xtreme Hunter ammunition has an optimized nose flute. The difference is that weight and attained velocity have been optimized to achieve maximum penetration depth with a permanent wound cavity (PWC). Not only is the PWC over 100% larger than any other expanding bullet terminal performance is achieved despite being shot through barriers. The solid copper body ensures that thick hide bone and any other barrier will have minimal effect on the Permanent Wound Channel. Nickel-plated brass casings the nickel plating process provides several key benefits not limited to but including; improved feeding in all actions of firearms enhanced corrosion resistance over traditional brass improved cosmetics and ease of cleanup during reloading. Nickel-plated casings will not tarnish like brass during storage or when in contact with foreign materials such as leather moisture and other metals. As with all of Underwood Ammo rounds we utilize flash suppressed powder so that vision will not be compromised if it becomes necessary to use your firearm in low light. This high-performance ammunition is field tested using popular real firearms that customers are most likely to own out in the real world.