I've seen the Hornady case feeder and it looks pretty impressive, but since I'm using green presses I didn't make one.
I have, however made 3 Bullet feeders (print files created by TylerR) and they work great. The biggest one he created part files to make them feed cases, and I made one of those too, so four bases total so far.
APP parts that really improve Lee's little machine.....are also in Tyler's database downloadable at the bottom of any of his posts.
I also made his bullet feeder dies which I find to be more trouble-free than the commercial ones made by Hornady. Picture of those below:
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These do require you buy a spring, nut, and two ball bearings each. I think I spent $8 on a box of springs, had extra Lee die nuts, and the ball bearings (a dozen) were another $10 or so......each uses about $3 dollars worth of plastic.
Of course you do have to buy or borrow a printer....another $300 to $500 dollars.....but the investment pays off. You'd spend that for only one commercial collator with caliber changes.