A kit of drum inserts is available. I believe mine was two regular and two large, with the large including adapters to scale them down to regular volume. I have never used my autodrum as an adjustable measure. I have dedicated drums for powder measurements I expect to use again.I've used and have both the disk and drum. Bothe work fine, and I have never leaked powder from either. I prefer the drum due to the adjustability vs finding the right disk. They are reasonably priced you could buy a few of them and leave them on the turrets that you use most.
They don't look to be the best, but I've used mine since they first came out and others discussed them here. Mine is very consistent and so far so good.
-jeff
I spill a bit of the finer powders, but the autodisk works fine and especially with the adjustable charge bar. I think the answer was covered well in post #2. Finer powders leak less in the autodrum.
I smashed my Autodisks with a hammer.
The Autodrum isn’t the measure the Uniflow is, but it’s very good for its price. It’s certainly not derived from the Perfect Powder Measure, other than both are drum type measures... I also smashed my PPM... The Autodrum, I don’t mind recommending as a budget option. The disk or PPM, well, I’d feel more honest recommending you pay someone to kick you in the nuts.