Reddit mentions of Stainless Steel Tumbling Media Pins - 0.047" Diameter, 0.255" Length (2.5 lb Pack)

• Harbor Freight Dual Tumbler
  
• Stainless Steel Tumbling Pins
  
• Dawn (Single drop)
  
• Lemishine (light sprinkle)
  
• Frankford Media Separator
  
• 5 gal. bucket

I use these pins. Proper size so they don't get stuck in primer holes. Package is 2.5lbs so you have enough for both drums and a bit extra for when you lose them over time.

Also comes with a sample of detergent that I thought worked really well. Lemishine and dish soap are cheaper, which is the only reason I didn't buy more.

The 3lb would work, but if you can get a deal on the 6lb one, I'd get it. I have the 6lb one(dual drum) and if I remember correctly, I do 50 cases of .308 or 7.62x54r cases per drum, each works out to be about 1lb of brass. For 9mm and 45acp, I weigh out a pound on a kitchen scale.

I do 1lb brass, 1lb stainless steel pins, 1 lb water, a squirt of laundry soap, and a 9mm case worth of lemishine.

I deprime before cleaning with a Lee depriming die.

I tumble for 30 min to an hour, then separate from the pins, rinse, and let dry.

I also load on a single stage about once a month, and it works great for me.

If you have any questions, you can PM me.

The absolutely best way to clean them is in a tumbler with stainless steel pins. I started doing this with my stainless steel baffled cans and it saves Soo much time and effort on my part.
Buy this from harbor freight with a 20% off coupon:
https://m.harborfreight.com/dual-drum-rotary-rock-tumbler-67632.html

Then buy something like this:
https://www.amazon.com/gp/aw/d/B00IER21M6/ref=mp_s_a_1_3?ie=UTF8&qid=1517851599&sr=8-3&pi=AC_SX236_SY340_FMwebp_QL65&keywords=stainless+steel+pins

Put about 1-1.5" of pins in the bottom of the drum. Place baffles in the drum, fill to just covering the baffles with water and a couple drops of soap. Add Lemishine to the mixture. Run overnight and the baffles will come out as close to factory looking new as they possibly can. Don't put aluminum in the drum however.

You can choose to split up the baffles between the two drums if it's too full or buy a bigger drum that replaces the two separate drums with one big one.

https://rocktumbler.com/barrel.shtml

On this page it's the last drum for sale, the tumble-bee 4lb drum. I run my pistons too with no issues.
Hope this helps!

If you want to give wet tumbling a try you could do what I did. I got a dual drum tumbler from harbor freight and 2.5 pounds of stainless steel media off of amazon. Put about a pound of of media in each drum fill the drum about 3/4 of the way full with brass then add 50/50 water and white vinegar with a dash of dish soap and lemi-shine (sp?). I usually run it for two hours then rinse and dry my brass. You cant do huge amounts with it but you can build your own drum for better capacity and it's a good low cost way to see if you like wet tumbling. I have done over 1000 rounds this way and they all have come out great. I remove the primers before I tumble and it gets them really clean and shiny.

Link for the tumbler: http://www.harborfreight.com/dual-drum-rotary-rock-tumbler-67632.html

Link of the media: http://www.amazon.com/Stainless-Steel-Tumbling-Media-Pins/dp/B00IER21M6/ref=sr_1_2?ie=UTF8&qid=1409188995&sr=8-2&keywords=stainless+steel+tumbling+media

• Wet tumbled using this
  
  
• used these steel pins
  
  
• a dash of dawn dish liquid and 2 9mm casings full of lemi shine.
  
  
• leave on for 1.5 hrs
  
  
• air dry for now just bought a food dehydrator to speed things up.
  
  Note: deprime before tumbling for the extra clean primer pockets if you were to load precision. For mass loading of 9mm i do not bother.