Every day, a large percentage of those who conceal and carry opt for a 9mm Luger or 380 Auto. The former is due to its effective power and terminal performance, and the latter for its compact size and ease of concealment. However, both have limitations. The 380 Auto has always been criticized for its limited power and terminal performance. And any 9mm Luger shooter would like to have more rounds in their magazine, or a smaller frame gun for easier carry.