Hi all just an important warning don't use brasso on cases as any trace left behind can eat through the case removing the Nickle from the brass alloy. This can cause britthe cases that explode when fired and cause pin holes and seperatioms.
As mentiomed the safest way is to use steel wool I use OOOO as it is the finest.
Personaly I would not worry about them I would make sure they have dried completely then wipe off any fingerprints with metho and just shoot them next time out.
Hi all just an important warning don't use brasso on cases as any trace left behind can eat through the case removing the Nickle from the brass alloy. This can cause britthe cases that explode when fired and cause pin holes and seperatioms. Cheers Bill Australia