TexasCHLforum.com

You guys are absolutely correct. I didn't watch the video close enough the first time. With the volume up you can hear the solenoids actuating the mechanism allowing the cases to drop.

You don't need to hold the tolerance you're suggesting. The hole only needs to be between the intended sizes. Using your example you could drill the first hole anywhere between .374" and .390", a fairly wide range. The next hole would be between .391" and .405", etc.

If I were building this I'd probably use slots since it would jam up if the casing didn't fall right away. I suspect if you could dissect the machine you linked to that is exactly what was done. Since creating a slot is times more difficult than drilling a hole I'm guessing the easiest solution is to farm it out to a local machine shop.

My 2 cents worth.