Have you seen “Ride With The Devil” about the CW in Missouri? Great gun handling and horsemanship. Cavalry sabers were obsolete, big revolvers were the “high capacity” firearms of that war. Below is the trailer link.
https://www.youtube.com/watch?v=F8Vwm6dBQI8&ab_channel=criterioncollection
CS cavalry troops loved the single and double barrel shotgun. Yankees cav thought that was unfair....