Lucky is a unique version of the standard .357 magnum revolver. In comparison it deals more Damage and has a higher fire-rate and Critical Chance. The barrel, frame and chamber are made of a smooth black metal decorated with ornate gold etchings, and the polished ivory handle is inlaid with the clubs symbol. The word "Lucky" is imprinted on the silver plate on the ejector tube.
Like most unique weapons, weapon modifications cannot be used on Lucky. However, it comes with the long barrel modification already added. Furthermore, it is considered an improved holdout weapon, and can be concealed and taken into weapon-free locations so long as your Sneakskill is 50 or greater.
Durability
Lucky can fire a total of about 1120 standard rounds, the equivalent of 187 reloads, from full condition before breaking.
Lucky is found in a locked floor safe (Lockpick 75) inside the Bison Steve Hotel in Primm. Enter the hotel through the main front entrance and proceed through the doorway ahead. Follow the corridor and enter the gift shop on the left. The safe is behind the cash register.
Lucky and That Gun have the second highest potential critical hit chance of all one handed guns behind the silenced .22 pistol.
Lucky can be seen on the cover of the Fallout: New Vegas game guide
Bugs
pc When player is reloading while running, the character may be stuck in glitchy animation after reloading completed for a few seconds or until aiming or firing to return back to normal animation.
xbox360pcps3 Giving Lucky to Cass or Raul causes a regular .357 model to be displayed on their persons, but giving Lucky to Veronica shows the correct texture of the revolver.
pcps3xbox360 If loading a saved game from the main menu in which you have Lucky equipped and drawn, the reload animation takes twice as long as normal. This can be solved by simply switching weapons and then back again.
xbox360ps3 Using Lucky in V.A.T.S. may result in your character doing nothing for ~10–20 seconds, leaving you exposed to enemy attacks and unable to do anything during that time. It may be due to reloading and going into V.A.T.S. at the same time.
xbox360ps3 When reloading in 3rd person view,the loading gate (the little piece you flip open to load the rounds) can become stuck open. This is simply fixed by firing or holstering and redrawing the gun.