It isn't really the same thing, but it is the same time frame. The British intervened in the Tai Ping Rebellion at the time the ACW was going on. If you have a look at how some of the forces there fought it might be instructive.
Now the Tai Ping, with matchlock muskets, are going to be a different game to Union infantry with rifled muskets so the comparison will be a little wonky but there probably is some information to be gained.