I've found that using a strip of 1.5" wide masking tape makes for a very quick and easily replaced label for both powder & shot sizes on the bottles as well as a note on the weight of powder being thrown & bushing installed in the charge bar.
A piece of the same tape across the box top will give you an instant label for the hull, powder & weight, shot size & type, primer & wad. Just run a strip across and trim w/a razor blade or box cutter for clean edges. Its fast & inexpensive & it helps to prevent errors. I go through periodic loading binges, boxing hulls so labeled and placing them in flats that are also marked on the end facing outward when stacked. Makes life easier for me doing it that way.
I've also found that it is expedient to replace MEC bottles when they become clouded by graphite or start to show any sign of yellowing. The plastic degrades over time and becomes brittle. No fun if one finally cracks w/shot or powder in it. MEC service has always been top notch in my experience. New bottles are inexpensive in the greater scheme of things.
