Re: Anybody recognize this powder thrower?
Back about 4 years ago the folks at Sinclair sat down, 6 of them around a table, and discussed measures and throwing techniques. They decided to devise a test. Each documented their method of throwing.
The group of measures went home with person #1. They tested all the measures with the different methods as well as different powders and recorded their results. The next person did the same.
They analyzed all the data when done. The summary of their results is this -
- which measure used is not as important as which technique was used
- "knocking" techniques produced the least consistent results
- a slow, deliberate movement of the lever with no hard contact on either end of the stroke produced the most consistent results regardless of the measure used
I bought the RFD, the measure that consistently did well in their testing, and tested it alongside my RCBS Uniflow and my Lee Perfect using RL15, Varget, and VV N140. Here were my conclusions:
- the Uniflow produced the best results I had ever seen out of it with the slow no knock lever movement; way better than the "double knock at the top" technique I had been using before
- The Lee produced good results, but would throw a majorly light or heavy load about once every 10-20 throws, regardless of technique used
- The RFD would throw poorly when using my "double knock" technique, but very well using the slow and smooth techinique
- Varget was the least consistent throwing powder of the 3, with VV N140 producing the best throws overall with RL15 doing some OUTSTANDING throw strings as well
- the Uniflow, while much better (and quite acceptable) with the revised technique, was still bested by the RFD
In other words, don't use the built-in knocker on your 55
