As mentioned above the expander is built into the base of the powder measure but functions in another station. The adjusting screw is somewhat difficult to access but after giving it more thought that shouldn't be a problem because it's not something that needs adjusting often, especially if only one caliber and case manufacturer is involved. So, I'll probably stick with the stock setup for now. However, should I later decide otherwise couldn't a separate die be used in the space assigned to the primer swage?
I've never seen a 1050 but as mentioned earlier the RL1000 is a fantastically built machine. The only drawback with the design that I can see so far is that the powder measure is not case activated. I don't how much of a problem that will be for me if any. I also have 2 Dillon XL650s and have probably become spoiled when it comes to a powder measure.
But back to my question on the dies, any comments or suggestions on whether to go with Dillon or another manufacturers dies? I have no complaints on the Dillon dies as they have performed great but adjusting them when changing bullet types is a bit of a pain. They would be ideal if adjustments could be made on the fly with a top mounted adjusting screw or micrometer.