This is an adapter to allow use of the (inexpensive) Lee funnel case collator with the Dillon XL650, and perhaps other Dillon progressive presses.
It snaps on
...Plus the outside of a standard Dillon case feeder tube, and uses a 1/4 x 3" bolt with two nuts to hold the funnel assembly above the tube so you can load up the funnel tubes and turn them to drop cases as you go.
I steady the funnel with the plastic tube clip that came with the machine, presumably for the expensive mechanical collator they sell. A purpose built arm with a collar that goes around the tubes would probably work well, but I've never bothered to make one.
Sketchup files included if you need to embiggen it.
