These .45 ACP, 'Federal' brand used brass cases are for reloading pistol ammunition and are not yet loaded ammunition. They are always delivered clean and may have been polished by kensbrass.com for a better quality assessment .
Using the same brand of brass, most often sourcing the same gilding metal, provides structural similarity and durability. Also, I personally enjoy the aesthetic quality that using similar brands gives your finished product especially if the rest of your brass is the same brand,
cases come from indoor or outdoor 'covered' ranges and may have minor
dings, dents or slight imperfections and flaws which can be easily
removed upon resizing or will be 'shot out' upon the first firing.
These cases are a used product and so have been fired and are therefore sold 'as-is'.