I had a powerbelt blow up on me three years ago. It was an 80 yard shot with 85 grains of 777. Hit a rib and it disintegrated, The doe didn't go very far but I didn't like the looks of that bullet and haven't hunted with one since. I just think there are better options for less money. If I was going to use a powerbelt again it would be a heavy one but then why wouldn't I just use a heavy all lead conical instead? Your results may vary, I know a lot of people like them.
Art