I'm no expert - my experience is limited. I have an RCBS Uniflow (newer version from a kit bought around 2019) and I have a Quick Change Powder Measure from the Pro Chucker 5.
Things I think I understand: I believe the quick change metering cylinder is compatible with the Uniflow and Uniflow 2 body. The quick change metering screws are not compatible with the large/small Uniflow metering cylinder. The competition micrometer large/small adjustment screw is compatible with the Uniflow and Uniflow 2 large/small metering cylinder. The Uniflow III is its own animal.
I'm looking to add another powder measure to a tool head on the Pro Chucker 5 dedicated to 9mm. Being value oriented (cheap, frugal could be other words to describe me), I'm searching for a used one. Seems like an old Uniflow is the way to go as I would not be changing the volume frequently but I am confused about the differences in the RCBS Uniflow and Uniflow 2. Are they cross compatible with metering cylinders? What are the differences between the Uniflow and Uniflow 2? What would you consider regarding the RCBS powder measure options on a Pro Chucker progressive?
Things I think I understand: I believe the quick change metering cylinder is compatible with the Uniflow and Uniflow 2 body. The quick change metering screws are not compatible with the large/small Uniflow metering cylinder. The competition micrometer large/small adjustment screw is compatible with the Uniflow and Uniflow 2 large/small metering cylinder. The Uniflow III is its own animal.
I'm looking to add another powder measure to a tool head on the Pro Chucker 5 dedicated to 9mm. Being value oriented (cheap, frugal could be other words to describe me), I'm searching for a used one. Seems like an old Uniflow is the way to go as I would not be changing the volume frequently but I am confused about the differences in the RCBS Uniflow and Uniflow 2. Are they cross compatible with metering cylinders? What are the differences between the Uniflow and Uniflow 2? What would you consider regarding the RCBS powder measure options on a Pro Chucker progressive?
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