This type of Powerball would make you the loser if your on the receiving end of it.
These are the rounds that have the round nylon ball at the bullet tip. I should have chronographed a round, maybe tomorrow.
Not the most scientific test method but volunteers are hard to find.
This was a round of the Powerball 380 caliber fired from a Browning 1955 into water jugs at 10 feet. Made it into the third one and ended up in pieces as shown. I was not too impressed.
Personally I prefer Gold Dots.