The magazine loader is put around the magazine with the back to the left, until it locks; then there magazine in put vertically on a base. The left hand pushes the push button of the loader downward to the stop. The right hand puts the cartridge (single), case head towards the left, under the magazine lips and pushes it to the left into the magazine when at the same time it releases the pressure of the pushbutton. When 32 cartridges are filled, the bottom cartridge becomes visible at a hole at the back of the magazine.