When writing the Handbook of Modern Percussion Revolvers, I had to make many difficult choices about what to leave out in order not to stay focused on the goal of teaching the basics of safe use and management of these antique style weapons. Some of those choices were to focus on the three most common types of revolver while excluding detailed instructions for really cool guns like the Starr double action, the LeMatt, and Pietta’s replica of an 1873 Peacemaker that is actually a muzzleloading percussion revolver.
I’ve taken a certain amount of heat over the omissions, and maybe a volume 2 will be forthcoming.

Another section I cut was a study of the ballistics of these arms. This was left out because many other people have done fine work in this arena. The Lyman Black Powder Handbook and Sam Fadala’s Black Powder Loading Manual have presented far more scientifically supported information than I could ever afford to produce.

I recently came across a very well presented essay on the topic of ballistics by Terril James Herbert. He discusses the performance of percussion revolvers in ballistic gelatin, and I think other students of arms will find it interesting.
Gun Review: Classic cap and ball revolver calibers get the ballistic gel test