Here'e my writeup from another forum RE: the Hornady case feeder.. (using currently for 9mm, .223, .308):
Hornady did silently update their case feeder some time back (maybe a year or so?).
Previously, there were some talking about 're-clocking' the collator vs the tube position, to line them up more properly...this is no longer an issue.
The case feeder isn't perfect. There is some initial adjustment that isn't terribly obvious, adjusting the effective tube length to ensure a pair of cases can't jam the sensor, like so:
Once adjusted, however, this issue is adjusted once and forgotten, and will fill the tube looking something like this:
As the 'pusher blocks' don't extend all the way downwards, I've added a 'pusher' made of a paper clip, to help push the shells from the bottom (much less chance of tipping for e.g. .223).
Someone else has posted pics elsewhere of extending the drop tube with a piece of thin-walled PVC or other tube, which also helps. I've done it with a piece of clear tubing, I think I got from Linen and Things online..no pic, but it just slips over the silver drop tube shown here:
ry4mABc.jpg
On the opening adjustment above the funnel - some people seem to tighten it up/make the opening smaller vs wider, but I've stuck with the Hornady instructions, just adjust it so a 'head-first' case hits the slider before it reaches center of balance. I think I even leave the adjustment alone swapping between .223 and 9mm nowadays.
Last on my mods list...I believe Hornady really should have designed and included a few funnel tube inserts. With shorter cases (e.g. 9mm), it's possible for the case to occasionally lodge itself in the funnel front to back, which will then result in 'brass rain' as it blocks off the funnel and tube. I cut up a primer tray that sits on the front face of the funnel, which makes the front to back distance < length of a 9mm case, and eliminates that problem. .223 could infrequently manage the same side to side, so - another cut up primer tray hooked into the left hand side of the funnel pretty much resolves that. You can see that 'insert' in one of my pics above.
With these things done, for me, for .223 and 9mm, it's pretty good. Not perfect as in 100%, never any brass rain or jams at all, but pretty good, as in I can usually load for a session of 200-500 9mm with 0 or 1 issues, and similarly for .223. It's reliable enough that I haven't quite become motivated enough to chase down that 'final few %.' What will happen occasionally is a jam of sorts at the top of the tube, but still in the collator. As the Dillon and Hornady collator plates are identical, maybe this happens on Dillon as well? What I *think* is happening is you get multiple cases still on top of each other somehow at the top of the rotation, with one case in the correct 'ready to drop' slot/position, but then the motor's rotational speed is slightly too fast for the 'extra' cases, causing a jam. If so, there seem to be two ways to solve it - adding a rheostat or fixed resistance to slow the motor down slightly, or maybe putting a slot in the side of the collator to put a 'wiper' on the inside of the collator, knocking back any 'extra' cases just before the case drop. One of these days, I may get to it..maybe. :)
Pretty happy with it overall, but wanted to add some more info in case someone digs this thread up later..or, of course, if anyone has the 'last remaining issue' above solved already. :)