Not sure the Lyman 55 is still made, but I have two of them. The newer one is slightly different from the older one. I bought my first 55 around 1967, have never used any other. I have an RCBS, but have yet to ever use it. I don't like the fixed volume rotor cavities. I couldn't even begin to estimate how much powder has passed through my 55s in the last 50 years.