I'm pretty sure reloading a NW musket would take around 30 secs, while on the civil war it'd be like 20-25 secs, given that you are quite an experienced soldier. So it's not very long and can easily be compensated by accuracy. At least in the civil war, where a good soldier was expected to shoot an enemy from 400 yards (around 360 meters, I suppose) with his Springfield. So in fact BCoF could possibly be really cool to play if they used historically accurate weapon stats.
Have you guys ever played N&S? In this mod, reloading is more than 2 times faster than it was in RL, but the accuracy is really bad (even worse than it was in RL) So you end up shooting 5 bullets per minute, non of which hits the target. I'd rather prefer to shoot 2-3 bullets within a minute, but with a slight possibility to get someone ;-)