Gunpowder and bullet storage?

[FoxholeNorman]

Maybe I'm not high enough rank yet but I was wondering where the items where that let you carry like 24 shots and gunpowder, I have the ones that hold 12. I am currently level 39. Just wondering.

 

[FoxholeNorman]

Oh and is there any other way to get ammo and stuff on the ship other than your starting port. Like currently I can only ask the shopkeeper in Redmond to fill my ammo up.