The Caldwell Rimfire Rotary Mag Charger revolutionizes the way you load your rimfire magazines. With this innovative design, you can take loose rounds of ammunition and load your magazine within seconds. The Mag Charger automatically aligns each round so all you have to do is insert the magazine and twist the plunger loading the ammo until fully loaded. Holds up to 100 rounds of 22LR ammo Durable polycarbonate construction Fast and easy loading Hopper automatically orients ammo correctly