Before I begin whining and griping, I would like to express my extreme pride, joy and gratitude to the hunting gods for being able to witness my son take his first ever buck, a beautiful south Texas 9 pointer while we were hunting together last week. He made an excellent shot on a great buck, I hope it is the first of many that I will be able to share with him. After he got his buck, we returned to hunt the same area that evening. I was carrying a winchester Apex .50 cal, 120 grains 777 with the 250 grain Barnes TMZ, a very accurate load in that rifle. I was curious to see how this load would perform, so when a large doe stepped out of the brush at 85 yards I shot her behind the shoulder. She kicked at the shot and ran about 50 yards into the brush, stopped and stood there. I could see a large hole right on the money spot and expected her to fall any moment. She stepped behind a live oak which prevented a follow up shot, but did not go down. After several minutes of this it became clear that something was very wrong with the shot, so I maneuvered around and finished it with my son's .243. Examination showed that the Barnes had penetrated the brisket almost to the rib, maybe 3/4 of an inch and stopped, it cracked two ribs upon impact, but did not penetrate them. The impact of the second shot must have knocked the TMZ loose, as I found the perfectly expanded Barnes projectile laying on the %$#&*^%$&& dirt next to the deer. A four letter moment for sure. I really don't know what to think, seems to me that thousands of guys kill thousands of deer every year wiht Barnes bullets, anyone else had trouble with TMZ's?...mystified