I have been getting the 100 round plasic boxes for the smaller stuff, 45 colt and the like, as well as 223, and the 50 round boxes for the bigger stuff like the 500 and 7.62. As I prep the brass, I put it into a box with a sticky note as to what is in the box, and what has been done. When its done, it gets a new note that tellsa me what bullet and powder I have, as well as OAL.