For reloaders, knowing what's in the box is also important after you know what should be . May not seem so crucial at first with one gauge and one or two loadings but it will become very crucial. Don't guess; mark boxes with the loading or gun for which intended or mark the primer of all shells or at least leftovers with colored Magic Marker conforming to a code filed in your head and additionally in your safe, in your reloading area, in your glove cmptmt, and/or in your wallet. Some mark the overshot card on roll crimped shells. Either way, if you use hulls again, the identifier has flown or been punched out--no confusion from old markings.

jack