Nope, I'm pretty sure you have to vent your containers anyway, since the yeast produces carbon dioxide. You'd just have to bottle it back down on the ground if you wanted it carbonated.
As for ammo, nobody loads charged .45 ammo in a clip. But people do use hollow points, or rubber bullets. To get around the confusing bit there about how ammo works with all guns, I usually just consider it as a classification of ammo to bring. For example, there are many sizes of DU rounds, or many calibers of hollow points, but they all fall under one classification.