What the OP experienced was not a jam, but a part failure. Hate to be the one to tell you, but tap and rack does not fix broken parts. Revolvers fail, semi-autos fail, 'ell even single shot break-action handguns fail. If it has parts that move and wear, there's always a chance something will break, especially if it's 100 years old and has been shot often. For the most part, this is what has kept gunsmiths in business for years. Same reason most LEOs and folks hunting Dangerous Game have back-up guns. Even folks hunting non-dangerous game going on the hunt of a lifetime take another gun along....just in case. Most modern firearms, used with the proper ammo, and cleaned and maintained, are quite reliable. Very few are true "jam-a-matics". Those that are generally fall into the cheap, throw away, Saturday Night Special category for obvious reasons, or have some inherent design flaw. More parts does not always relate to a bigger chance of failure, but simpler is generally more reliable than complex. In the long run, when one's life is on the line, they need to use what they are most comfortable with, have the most confidence in and are the most proficient with. Most often, the part that fails them, is the one pulling the trigger.