Devices, systems, and methods of using ammunition cartridge blocks to hold a plurality of cartridges upright, including a first layer having a plurality of openings configured to receive the plurality of ammunition cartridges, a second layer having a plurality of holes alignable with the plurality of openings and configured to receive the plurality of ammunition cartridges, the second layer positioned above the first layer, and a third layer having a plurality of holes aligned with the plurality of openings and configured to receive the plurality of ammunition cartridges, the third layer positioned above the second layer, the second layer adjustable with respect the first layer. An operator may adjust the second layer to lock the plurality of cartridges into position.