Hornady One Shot is a gamechanger for smooth operating even with pistol cases. It isn't going to leave a greasy film like dillon lube. You don't have to worry about it contaminating the powder. You actually WANT it to get in the case mouth. I picked up an old baking pan from a thrift shop. Put a bunch of cases in and shake it until most of them are facing up. Spray, shake around some more and your'e done.