I don't worry about the CTG stuff too much. I think most people expect to see a model name somewhere on a revolver, and if there is no "MOD 00" abbreviation under the yoke, the next best guess is that the label on the barrel is the name of the gun. You know, Raging Bull, Python, Highway Patrolman -- that kind of thing. If it never occurs to them that CTG might be an abbreviation for cartridge, it will not cross their minds that they are reading a specification rather than a model name. It's an easy mistake for those who don't know revolvers already, and a forgivable one.