I have shown before how I was using the Plano bins and drawers to store my collection, and they are excellent to stash away and the absolute best for traveling, however they were not great when just looking at or showing off a collection.
I have since bought a few older watchmaker’s parts drawers that are sectioned off perfectly for .22s, Floberts, pinfires, pistol rounds, etc. They were originally made to hold little glass vials that are corked at the top with watch parts in it. (you can see a vial in the very bottom of the bottom picture)
The ones I have been looking for are metal cabinets, with light wood inserts that are pre-cut to hold cartridges.
Here is an example from online: