User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-83.165.23.90-20121214224500/@comment-4563270-20121215170508

^ i believe those bullets are realy the charge phials. instead of having a gauge like switch axe you charge up these pods by using the weapon and u can use charge mode which i imagine uses a combo thing similar to longsword while in sns mode but the axe mode gets an over vamped attack that has the ability to stun monsters like a hammer which uses one pod each time you use it.