The best rules I have paid for this period are the Frei Korps Horse and Musket rules originally produced by Guernsey Foundry, excellent set of rules that work superbly for very small skirmishes, individuals are card activated, and the mechanics means that you can never be sure who has a loaded musket. should still be available from Tim Peterson at gisby@mts.net, if not I have a set I can photocopy and send.