Well you guys got me all fired up so I decided to go polishing. I have been using Lymans corn cob media but as you guys noted - it gets dirty real quick. So I grabbed some used Bounce sheets from the trash can beside the dryer. I figured if one was good then 8 would be super! So I sliced the 8 sheets into 32 strips. Well too much is not a good thing and a lot of them got wrapped around the spindle. So I fished those out and cut 8 in half making 16 patches. This seemed to work very well.
Drawing on others knowledge I bought some Brasso (plastic bottle - not as good as the can I know) and dumped that into the media. What I failed to do was
remove the cases before adding the Brasso, so I ended up with polishing compound
inside the cases
I the meantime I had to run an errand and left the tumbler running. Well guess what - it vibrated right off the bench. Casings and media all over the the floor - but that 'ol Lyman was still vibrating !
Shoot I thought (well not exactly the word I used) out of corn cob media and Bounce

I run down to Princess Auto (after cleaning up - I am married...) to buy some ground walnut shells. Well the cashier looked at me kinda funny - but I let on that buying walnut shells happens all the time...
Now new walnut shells and semi-polished brass are happly vibrating in my basement, and I type and hope that some new calamity doesn't befall me before the kids get home...