You read it all the time, on the Internet and in print: That a .38 Spec. fired from a snubby revolver is just fine for self-defense purposes, but a .380 is considered "marginal". Why? I mean, a 135 gr. Gold Dot load has essentially the same amount of energy as a 90-100 grain .380 load. They make basically same size hole also.
So, why the disparity?