You often see depictions of archers, crossbowmen or soldiers armed with early firearms making simultaneous shots in a formation for greater effect. Sometimes there might be someone shouting something like “Ready. Aim. Fire!” to set the pace.
Wouldn’t the firing speed of a squadron be based on the slowest reloader? So presumably some of the soldiers might be able to fire their weapon faster than the firing speed of the overall unit.
Let’s say a musketeer or archer fires 3 shots per minute. Why would 50 shots fired at once every 20 seconds be more deadly than say 5 shots every 2 seconds with each man firing at their own pace? The trajectory of a single bullet or arrow isn’t based on any other bullets fired at the same time, so why would a volley of arrows or other projectiles be more deadly? It’s not like you can react to a musket ball coming at you to raise a shield or some similar cover.
If simultaneous squad based firing is historically accurate, and I’m assuming it is, there must be some reason for it. Is a volley of arrows really more deadly than the same arrows fired over a longer period?