Your forgetting something....................
Dawn is what they washed the oil spill animals in.................
Don't you love your brass?

Read below "Its tough, but gentle". ;D
How many baby cartridge cases have you killed today?
Instructions for Thumler's Model B Tumbler
1. Add 5 Lbs (2.27 kg) of SS media into the drum
2. Next fill with 1 gallon (3.78 Liters) of cold water. (One gallon)=8 Lbs/3.63 kg
3. Add your brass into the drum (2 Lbs/907g of brass)
4. Add dish soap. 1 -2 Tbs (15-30 mL) of either
Dawn, Ivory, or Joy dish soap
(if there are no soap bubbles in the water after you tumble, you need more soap)
(NOTE:My comment, these three dish washing soaps hold MORE dirt in suspension and this is WHY they are recomended)
5. Add 1/4 Tsp. (1.25 mL) of Lemishine. This is the key to the shine. (Not too much)
6. Tumble 3-4 hours with the Model B High Speed Thumler’s Tumbler
7. Pour out as much water as you can without losing any brass or pins
(The more you rinse the brass and pins the better your results will be next time)
8. Fill drum with water, and separate brass by hand or use an STM Media Separator with water.
9. Rinse your brass off really good with some warm water. (Not getting a good rinse can leave water spots on the brass)
10. Dump brass onto a towel and let dry. If any pins get stuck in the neck of the brass throw those pins away
11. Store Stainless Steel Media either wet or dry in drum
http://www.stainlesstumblingmedia.com/tips