Free: Contests & Raffles.
heck ...just buy a 500 S&W and you will not need to worry about anything
Just to be on the safe side with that ol Colt and any single action I spose, you want to have the hammer down on an empty hole. That leaves you with 5 rounds, 4 for the bear and 1 for you when things get really ugly.
The gun in the picture is a Colt New Frontier.
You can always go out and practice with it and get it dialed in, that's always fun.