Pistols are obviously smaller, sleeker, and easier to conceal than revolvers, but which one is more likely to jam on you? The FBI and military carry pistols because the reaction is quicker; there is no hammer to pull. Let's all be honest here though. If the men in Marine infantry have to use their handgun, you already know the **** has hit the fan. One isn't necessarily greater than the other when talking about self-defense. Jams happen quite often. When have you heard about a revolver jamming? Not never. It's ALWAYS better to be safe than sorry, so just carry a snub nose, so you get the best of both worlds.