You have to plug the magazine to two rounds. Ticonderoga makes a fat sharpened pencil (Staples). cut back the tip, drop it in (google disassembly - three screws including two at the front sling, raise the cap off the wood). It fits between the spring, pointy end down to not catch the spring, works perfect, 7 1/4" with eraser. Tube now hold 2.5 rounds, #3 is not getting in. Very easy.