It works extremely well and is such a simple idea I wish I would have thought of it. The metal insert for 380 works as advertised and I have 100% capture rates with it.
The key to using them is to not overload the tray. Especially when you get down to the 380 insert. You want only enough brass so that all the slots will be full end to end. Sounds like a pain but you don't have to shake nearly as much and it turns out to be quicker. I will load up the 40 basket more then this but any nested 9mm cases are caught upon visual inspection. The only issue, it's not a major one, is separating 357 sig out. They have to be done by hand along with .223 but this is minor.
For the cost, if you pick up a good amount of range brass per month, it's a great investment.
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