Hi Will52100, I have been real lucky as far as breaking springs. I only have one cap and ball revolver that broke a trigger/cylinder latch spring. It is an Uberti made 1860 Army that I bought new in 1971. Only had it about a month when it broke. The old gunsmith I bought it from replaced all the springs with a set intended for Colt. The springs came from Brownells, they supply all gunsmithing needs (
www.brownells.com) . 40 plus years, and no problems. I have three other cap and balls that still have the original springs, but I have replaced springs in several European made cartridge single actions, with the same result. Brownells charge you $10 for their catalog, but refund it on your first order. They have about anything you can imagine that is gun related, and you will find yourself ordering often, and will get their new catalog sent to you every time they bring one out. Hope this helps, cowpox