I first went progressive with a CH Autochamp in 1979 for the .38 wadcutters I needed for PPC. The linear advance wore out and the company would not work on it because it was no longer covered by their insurance, which considered it a commercial machine instead of home use. So I have used the dies in a Dillon. They are not as smoothly machined as other brands, but they work well enough.
I have a CH .44-40 sizing die, titanium nitride coated to size without case lube. It is not quite tight enough for good bullet pull but a Lee collet crimp die seems to hold well enough.
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