Very good luck here. I'm shooting the 130 gr TTSX 308. They retain about 95% of their original weight, losing only the poly tip. They mushroom great . and cause a lot of trauma. They make a mess internally and almost always pass through. Only one I ever recovered was in a buck that field dresses 204 , I shot hard quartering away . The bullet angled through from the left side hip to the right shoulder , stopping just under the hide. His vitals looked like a little bomb went off. Knowing a little about classes and properties of copper , a solid copper bullet makes perfect sense to me.