Abstract: An ammunition loading tray is configured to hold one or more ammunition cartridges in a loading position. The ammunition loading tray includes one or more loading compartments; and each loading compartment is configured to hold a corresponding one of the one or more ammunition cartridges in a loading position. Each loading compartment includes a magazine receiving portion configured to support an ammunition magazine from below and allow for less lateral movement of the ammunition magazine in a first direction than lateral movement of the ammunition magazine in a second direction that is perpendicular to the first direction. An ammunition cartridge receiving portion is located within the magazine receiving portion. The ammunition cartridge receiving portion is configured to support the ammunition cartridge from below and limit lateral movement of the ammunition cartridge in the first direction while allowing lateral movement of the ammunition cartridge in the second direction.