It's electrostatic spraying and it swirls around the bullets and sticks to the sides as well as to the top. It isn't a cloud that just relies on gravity to "settle" on the bullets. I just spray it at an angle from the side, but fairly steep, and you do have to realize that after the powder bakes down - it is only .001 thick. That isn't enough to fill up a HP. If perhaps you were to drown them from the top (spraying straight down), you might fill up some of the HP but the powder would still cook down and I doubt it'd be even 1/3 filled when cured. The powder just swirls around the bullets and sticks mostly to the outside, since they are electrically attractive during the process. The HP is coated around the top on the inside, but not always. Sometimes it's bare lead colored in the bottom 1/3 of the hollow.
