BioShock: Infinite just came out today, and some people will no doubt play the game all of the way through with the object of beating the game. Others, though, will not only want to beat the game, but will want to earn every single achievement (or trophy) possible—and the A Real Pistol achievement is one of the very first (and easiest) ones you can get.
In order to complete this task, you will need to kill 25 enemies with the Broadsider Pistol. You can pick up a Broadsider Pistol in the first few minutes of playing the game and start mowing down some enemies.
Remember, the enemies that you shoot do not have to be humans. Mechanical devices, like turrets, will also count towards your achievements.
Check out this short video guide on how to unlock the Real Pistol achievement to see how it's done.
Click here for more achievements/trophies for BioShock: Infinite.