"kids with clean shining faces"; "clean white shirts"; "clean dishes"; "a spotlessly clean house"; "cats are clean animals" Some brass is sorted by headstamp and/or primer pocket sizing. This will be Plainly said within the product description. We also supply cleaning solutions for nearly all of our once-fired brass calibers. https://emilianopzjvd.collectblogs.com/81916107/the-ultimate-guide-to-40-cal-brass