Hi , I received my case feeder today and have the same problem (on 9mm so far). It seem to me the cause is just as stated in this thread, the case catches the spring and tips the top of the case in towards the center of the plate and yes if you go real sloooow it is not so bad.No problem. I thought for a minute there was some confusion about which station I was having issues with - probably has something to do with being on night shift last night and tonight...
One notch of the shell plate has a chip out of it on the leading edge - no idea how the heck I managed that, but oddly enough, the problem doesn't seem to follow that defect. It'll work flawlessly when I operate the press slooooowly... then I speed up, and as it starts to dick up, I slow down... and it keeps screwing up, then it'll stop and just work smoothly. I really can't pin down a definitive rhyme or reason to what is causing the problem. Whenever I have the video camera handy, it works fine. Maybe I just need to keep the camera on the tripod pointed at the press!
Very cool. Neat little fix.
I don't use a case feeder myself, so I am not sure what is going on, but my spring lays down flat enough for what seems long enough for the case to enter without tipping. I wonder if the spring slot on some is a bit off picking the spring up too soon.
Hornady was making shell plates as fast as they and all their subs could go. I believe they just let a bunch of poorly made ones out. I have numerous plates and it is obvious they were made by different places.Just to add to my confirmations on the shellplate. I got the new one from Hornady on Wednesday. The lip on the bottom is larger and more square. Worked like a champ because it keeps the spring down fully and lets the brass slide across without tipping.
Glenn