I used to use the “dry” vibratory method , but the abrasive dust and clogged flash-holes got very annoying. The “shaker” rig went to a friend who got enthusiastic about Moly coating bullets. DEFINITELY an “outdoors” job.

The mystery brew in the cleaning solution is Citric Acid. Not being keen to buy the proprietary packaged stuff, a did a quick ask-around and discovered that BULK Citric acid is used in commercial food preparation AND in the home-brewing of beer. (Talk about serendipity!)

It comes as white crystals in various-sized bags, (or in large plastic barrels for the serious user).

It is used to CLEAN all the containers and plumbing used in brewing.

It works for me and is inexpensive.

And don’t forget to rinse the cleaned brass to remove the Citric acid residue. Unless you like “spotty” brass. I live in a place renowned for its abundant sunshine (and occasional spectacular storms and the odd flood) so I sun-dry my cleaned and rinsed cases on “retired” bath / beach towels. Because the pins are magnetic, I use a large-ish magnet salvaged from a blown loudspeaker to pick out the pins missed by the sorting baskets that came with the Cyclone.

Next batch I will try running the Lyman “Cyclone’ without the pins.

Now I need to hunt down some suitable small-rifle MAGNUM primers for the Lapua .308 Palma brass I scored a few weeks back.