This is an old thread, but the remarks about development of tactical arms during the war needs to be addressed. Federal cavalry continued to use edged weapons to good advantage to the end of the war. When revolvers were available, Confederate cavalrymen preferred to use them. However, Confederates on horseback usually carried a single-shot infantry long arm, and the only use for such a weapon when mounted was as a club.
By 1864 a Federal cavalryman often had a carbine, a revolver and a good saber. Officers could decide which weapon was more favorable depending upon circumstances. When fighting on horseback, once a Confederate line was broken, Federals in pursuit of fugitives used sabers to great advantage. Unlike a revolver, a saber would not misfire or need to be reloaded. Also, the positive impact of saber use on Federal morale cannot be underestimated.
From Virginia to Arkansas, terrain in broken Southern hill country favored use of the saber. There were few broad, level fields for classic European cavalry charges. However, winding roads lined by thick woods limited vision and allowed Federal cavalry moving in column to approach without detection and quickly overwhelm a Confederate line. Woods or rough ground or either side of roads often restricted movement severely. Federals frequently rode into fleeing fugitives and sabered them at leisure.
In some cases, dismounted Confederates had time to deliver a ragged volley that didn't slow the Federals. By the time they were able to mount, the Federals were nearby or right among them. Results were predictable.