As I remember the Walker Colt held the title of most powerful handgun until the .357 came along in the 30's. Correct me if I'm wrong. I also understand that they had a nasty flaw with some of the revolvers blowing up from full charges. I wonder if these horse pistols were holstered on the horse? Carrying one around would get pretty heavy after while. I would think the more elegant Patterson would offer more accurate fire while at a dead run on a horse. I understand that the Walker was developed as a replacement for a carbine and pistol, but I wonder what the actual soldiers thought of it.