Brian in terminal ballistics there is no such thing as a free lunch, ultra high penetration bullets impart less shock then a rapid/wide expanding bullet. There is no doubt that the TSX gives the smaller calibers disproportionate killing power on medium game due to their deep penetration but I am used to getting a pattern of fragmentation through the vitals that almost always result in very rapid kills. When they make a lead free bullet that kills thin skinned game like a Sierra Game King or Nosler Ballistic Tip that will be the ONLY hunting bullet I load.