Ultrasonic.
Background;
The far corner of my garage has my reloading station. My Ultrasonic Cleaner is on a shelf 18" high, with the two rinsing, clear glass casserole dishes to the left. All lights and power outlets are remote controlled to reduce waste, and help me lower our bill.
Reasons;
The price of the solution, concentrated is not high. Being retired, that helps.
I use ROW water from the units I have installed. Them puppies make great coffee tea, and stews.
I can walk in, turn the unit on.
I can inspect any time for proper cleaning. Can return to cleaner if needed.
The unit is quiet. I can listen to my radio, 33s, talk to friends, play with numbers and data, or just have silence.
Press the warm or heat button if the temperature is close to freezing, or below the minimum temperature of use.
Go about what I happen to be doing
De-prime, and set back into the cleaner, start unit.
Enter garage for any reason, check the cleanliness of my brass.
If needed, turn on unit again.
When parts are clean, set them into first casserole dish, shake to remove air
Place into other casserole dish, shake gently
When clean, place into a SS wire bucket, (BedBathBeyond), hang above my cast iron fireplace, with glass window, to dry.
When clean, the brass is clean inside and out. A bit dull in color, but pretty brass doesn't help my accuracy.
Being lazy, or expecting my equipment to do the work it was designed to do seems natural to me. If the unit will clean with little input or time from me, I get happy. If not, it is time to design a better machine or procedure.
I have a few friends that reload.
They use the vibratory with media.
The insides of the brass still needs to be cleaned as it is still discolored, black with carbon. The wire bottle brush comes out with the drill motor. I prefer not to remove any brass. The media PM, Particulate Matter, are inside and outside of each piece of brass, so they still need a final cleaning. They change their media with great regularity. Seems to be a constant search for a media that works properly. By my estimations, they spend a few hours of their labor and time to clean each batch of their brass.
When my brass is new I number each piece with an acid pen. Then collect the weight, volume, thicknesses, Outer Diameter (@3 places), & length is placed into my "caliber of brass" folder, for whichever size I am reloading/cleaning. After shooting, and cleaning, I enter new current data.
I was an engineer before forced into retirement.
When I started designing machines & programing back in the '70s, I came up with a saying. "Too much information is almost enough".