I have a Colt 2nd generation 1851 Navy, in .36 caliber of course, and love it.
I've read a number of times that back in the 1950s and 60s, when fancy gun-twirling was at its peak, the 1851 Navy was considered the finest-balanced revolver ever made.
I don't dispute that. The `51 Navy fairly rolls forward and backward on its own when you finger is in the trigger guard. And it points beautifully. I don't own an 1861 but it's sleeker and may be even better balanced.
My only complaint with the .36 caliber is the lack of readily available balls larger than .375 inch. In the past I've written Speer and Hornady, urging them to come out with a .380 inch ball for the cap and ball sixguns. Such a ball could also be used for indoor plinking or pest control in the .38-55, .375 H&H, .378 Weatherby Magnum and other .37-caliber rifles.
Neither Speer or Hornady ever replied.
I've learned, since owning my first cap and ball revolver about 1970, that slightly larger balls not only cling to the walls of the chamber better, but ramming them down produces a wider bearing surface for the rifling to grip. This aids accuracy.
I haven't used a .375 ball in years. I shoot .380-inch balls.
Search the internet and you'll find sources for .380-inch lead balls for the .36-caliber cap and ball sixgun.
Dixie Gun Works offers them. Gad Custom Cartridges offers .380-inch balls for $5 for 100. A very reasonable price. Check out its website at
http://gadcustomcartridges.com/
For loading information, see my sticky in this section entitled, "So you want a cap and ball revolver?"
Have fun with that pistol!
heh heh heh ... another one recruited for my master for the Black Side ... excellenttttttttttttttttt ....