I have a little wire brush I bought so long ago I can't remember where and I would like a new one. Just chucked into the drill and set the trigger and cleaned the primer pockets and inspected the cases as I did the job.
I've been tumbling in rice since the mid 1970's and haven't found any thing I like better yet.



Course I use a industrial size tumbler instead of those wimpy things sold for tumbling rocks.



Al