I have been setting up some of the old gear I have. The old powder drop works great. It has a micrometer adjustment. This is an early Hollywood powder drop. I tried several powders Universal, Unique and H110. The powder all dropped all very accurately. I set the powder drop in the rock chucker just to have a temporary place to mount it. Then I threw 100 charges each and measured them on a scale. They all were rite on. I'm impressed with this old powder drop. The powder tube has went black from age. Maybe I can find a new clear tube for it. If not I can make one. All I will need is the clear PVC pipe. That may be hard to find in a small length. Here is the powder drop.