.22LR Round

The .22LR Round is a type of ammunition $$

Gameplay
The .22LR cannot be broken down to gain small pistol primers, nor can it be crafted.

Breakdown
Breaking down a standard .22LR Round yields:

Weapons Using

 * Silenced .22 Pistol
 * Silenced .22 SMG

Locations
Cliff Briscoe at the Dino Bite gift shop in Novac randomly sells .22LR and .22LR Hollow point rounds.

Behind the scenes

 * Joshua Sawyer stated that the .22LR variant of the Varmint Rifle "did such pathetic damage that no one wanted to use it," resulting in it instead being chambered for the 5.56mm/.223 ammunition.
 * Joshua Sawyer also states that "in rimfire ammunition, the rim of the case itself acts as the primer, but is destroyed in the process. This makes reloading rimfire cases difficult and usually not worth the effort."  For that reason, .22LR ammo in Fallout: New Vegas did not yield .22LR cases.