I found the 221FB, 17M4 and 20VT brass box panacea.....the Berry's Box No. 005 for 223 Rem.
These boxes allow you to pick out fired brass from the box. The usual boxes "hide" the little FB case below the rim so you can't finger grab them. These boxes are perfect for the FB case.
I got rid of all my MTM and other plastic boxes, as the other benefit of this box is that the lid is hinged so it lays flat when open. On the bench when shooting rats, it always irritated me that the MTM box lids would not stay open so grabbing the next rat killing round was always problematic. Problem solved with these boxes.