I have always heard a lot of police lore about this bullet. It was supposedly a good stopper as long as it did not have to penetrate objects such as car bodies. A couple of years ago I was given a partial box of the old Winchester 200 grain lubaloy Super Police load. I fired them out of 4 inch model 19; they grouped well but about 5 inches high at 25 yards. I wished I did some penetration tests or at least chronographed the load.