What 9mm vs .380 actually comes down to Strip the 9mm vs .380 argument down and two facts survive. A 9mm carries about double the muzzle energy, and a .380 pistol is meaningfully smaller. That energy ...
Why 380 self-defense ammo is a genuine trade-off Any comparison of 380 self-defense ammo runs into the same wall, so it is worth naming up front. The FBI protocol asks a bullet to penetrate at least t...