I have hunted mt entire life, and I have used many different kinds of bullets. About five years ago I purchased a new mark V Stainless weatherby chambered in a .280 Rem. I have spent the last five years working on the right load and hunting every year to verify bullet performance on game not just on paper and ballistic charts. After trying everything from speer to barnes I ended up with a 150 grain Partition going just over 2875 fps, that patterns under 1/2 inch everytime. Since then I have taken a 350 B&C bull elk, several mule deer, antelope, and 9 different species in Africa. One of the animals that I took was one of two kudu bulls. I took the bull at 414 yards on my leica lrf 1200 rangefinder. When the bull was examined after, we found that the bullet had gone through both shoulders (BONE) and kept right on going out the other side. For a bullet to perform at a range of over 400 yards and still hammer through bone says something for the Partition. My mother took a record book Shiras moose in Idaho this year with my gun at 403 yards. We found that bullet after the bull dropped immediatley when he was hit, and it did exactly what it was designed to do. The front of the bullet had mushroomed and the lead had seperated from the front copper, the rear held together and drove the bullet deep. I dont care what people say about all of the new ideas and bullets that are comming out everyday, the only thing that matters is what happens to the animal when the trigger is pulled. If there is one thing that the Partition does well, it is kill.