This is no surprise to me. A number of years ago I took my 270 Whitetail hunting. Because it shot so very well in that particular rifle, I decided to try the 140 Hornady IL. I shot a nice whitetail at about 55 yards, broadside in the ribs. Imagine my surprise when he jumped straight up and ran around the bushpile, only to stop broadside, this time about 125 yards away. I gave him another one, and he obligingly collapsed where he stood. That first bullet had basically disintegrated on a rib, and pieces of jacket and core went every direction but through the lungs. We found small pieces in the flank, in the shoulder and in the rear quarter. Second shot went through properly, and exited out the far side. I didn't wait long to switch back to the Partition in that rifle, even though I had to give up ¾ moa of accuracy. The thing that bugs me, I KNOW better, and have hunted with premium bullets almost all my 50+ years. Regards, Eagleye.