You will get suggestions for every type and manufacturer available. Some people like Remington NMAs, some like Colt replicas; some like Ruger Old Armies. Some people like Ubertis, some like Piettas, some even like Armi San Marcos, or Armis San Paolos, or Euroarms, or CVAs, or Lymans, or 2nd Generation Colts, or Sig Series Colts.
I've got Piettas, Ubertis, 2nd Gen Colts, and Euroarms. My current favorites are 2nd Gen 1861 Navies; but have a well made and accurate pair of Uberti 1861 Navies as well.
My best advice is to go to a stocking toy store and try every one you can for how it fits in your hand. Then find one or more CAS BP shooter in your area and try their guns.
Regardless of what you start with, you'll buy more. Its like an addiction. Once you start playing with black powder, it gets under your skin, and in your blood. Pretty soon all you'll be able to think about is the next time you'll get to shoot. You'll want to do it more, and more, and more..... you won't eat.......you won't sleep...... it'll take over your life...........aaaaaaaaaahhhhh hhhaaaaaaaaaaaaa haaaaaaaaaaaaaaaa haaaaaaaaaaaaaaaa
