The Underwood Xtreme Hunter (XH) was born from the incredibly popular Xtreme Defender product line. Like the XD, the Xtreme Hunter (XH) 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) that is just simply enormous. No expanding hollow point comes close to achieving anywhere near the diameter and volume of wound channel achieved by the Xtreme Hunter. 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.