what do you think about cleaning cases using this method

I will also give one of the wash & dry methods a try. Do you de-prime first and does wash clean grit from primer pockets and cast bullet grease residue from inside case mouth?

Sam, I did de-prime first and then ran the ultrasonic, all grit was removed in the primer pockets. I did notice that some of the cartridges had a very tiny bit of residue (grease?) on the inside of a the cases but I used a q-tip to quickly remove it. I'm thinking I may run it in the ultrasonic an extra 10 minutes to see if even this residue can be removed.
 
Haven't tried the ultrasonic. Purchased a vibratory tumbler about 15 years ago, and it works well with ground walnut shells.

Prior to that I used plastic buckets with hot water and dishwashing detergent, rinsed twice, then air dried for a couple of days. Soak for 24 to 48 hours in the detergent solution, then into the first rinse bucket for 24 hours, followed by a second rinse for 24 hours, then air drying (laid out so that air circulation allows for complete evaporation). Works very well with very little expense.
 
TRY THE LEMI-SHINE (CITRIC ACID) AND A CAP FULL OF CARWASH WITH THE WAX. ANY NAME BRAND. AND LOOK OUT. THEY WILL BE BRIGHT AND CLEAN. JUST RINSE AND SHAKE OFF EXCESS AND LAY OUT TO DRY.
 
Using walnut shells in Lyman tumbler, I have found it necessary to re clean inner case mouths using fine steel wool wrapped around old brass brush in drill to remove cast bullet grease residue. No big deal, but would be more interested in wet methods if they would remove grease residue.
 
I use a vibratory tumbler with dry media and it gets cases like new in a couple of hours of run time. There is no time spent wiping cases or waiting for them to dry - just take them to the loading bench and load them. And if you do that before depriming them (the most convenient routine when using a progressive loader), there is no way a piece of media can get into a flash hole.

I just cleaned 200 .38 Special cases that way and they absolutely cannot be told from new!

Ed
 
I like my ultrasonic cleaner even though it doesn't put a high shine on the brass. Recipe I use is 4 parts water,1 part vinegar,1 table spoon salt and 1 table spoon dish soap. That is after depriming. Smallish batches also. After rinsing and shaking water out into a rag dry them under a light.
 

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