Civil War/shotgun style loading
In a scenario including "civil war" or "shotgun" style loading, what would be the best way to load the paint?
I assume in "civil war", only one ball can be loaded at a time, where as "shotgun" 2 could be loaded. Would you just drop the paint into the hopper, or remove the hopper altogether and just drop the paint into the neck? In the case of "civil war", is it even possible to load paint directly into the barrel?