Volley Guns?

[mmartin798]

I pose this question to gather the learned opinion of my peers. There are many historical accounts of the use of volley guns in combat. The attached picture shows a fine 9 barreled Polish version. The question I have is would weapons of this type be constructed and used?

On one hand I think that they would be considered wasteful of black powder and shot. On the other hand, I can see cases where people struggling against a larger foe may have small fire squads use them in a guerrilla fashion in a hit and run manner. The floor is now open for comments.