It may seem impossible at this point, but humans keep enhancing their ability to kill others using guns. Example: the new Advanced Ballistics Concepts' new Mi-Bullet, a projectile that expands into four connected parts as soon as it's fired. The mechanism—shown in the video—is very clever, making it very hard to miss a target.
Called the Mi-Bullet, the round acts somewhat like a multi-pellet buckshot, but the separate fragments of the round are connected and will expand to a pre-determined diameter after the bullet is fired. The Mi-Bullet expands to a diameter of 14 inches when fired from handguns and 24 inches from shotguns. [It] maintains its accuracy by utilizing an accelerated radial spread aided by the rifled barrel, officials say. The larger diameter makes it harder to miss, the company said.
The manufacturer claims they will ship three types: non-lethal, semi-lethal (???) and lethal.