Hornady makes their Critical Defense ammo in .45acp; they're hollowpoints with a polymer core that acts like a steel core but won't penetrate steel or concrete, rather, the polymer core helps the round penetrate thick clothing that dumb*ss gang bangers wear 24/7. If that is of concern, then get the Hornady ammo.
Other than that, I cannot think of another handgun round that causes more tissue damage and outright amputation of appendages better than the .45acp, the slow muzzle velocity and foot-pounds of pressure applied to a point .45 inches in diameter is massive. The only other handgun I know of that is far more destructive (re: you live, he dies) is the .45 long colt round with lead hollowpoints.
As far as needing to shoot through concrete, windshields, engine blocks... what are you looking to do with a pistol that would require you to shoot through these tough barriers? As far as I know the Zombie Apocalypse hasn't happened yet so...
Bob
Other than that, I cannot think of another handgun round that causes more tissue damage and outright amputation of appendages better than the .45acp, the slow muzzle velocity and foot-pounds of pressure applied to a point .45 inches in diameter is massive. The only other handgun I know of that is far more destructive (re: you live, he dies) is the .45 long colt round with lead hollowpoints.
As far as needing to shoot through concrete, windshields, engine blocks... what are you looking to do with a pistol that would require you to shoot through these tough barriers? As far as I know the Zombie Apocalypse hasn't happened yet so...
Bob