It is a very low powered round, especially when compared to the more common .223, .308, .44, or .45 Auto that are also used in the post-war world. The .22 was used as a commercial small game hunting round, but wasn't as common on the East Coast as the .32. It has a self-contained "rim fire" primer and cannot be used in the "breakdown" action to gain small pistol primers.
Weapons using this ammunition
.22LR, hollow point
Hollow point bullets mushroom and break up on impact, causing massive trauma on fleshy, unarmored targets. However, this also means they break up when they hit things like armor plating, drastically reducing the weapon's penetrating power.
Plinking is an onomatopoetic name, referring to the metallic "plinking" sound of the ammunition as it hits tin cans or other, similar objects. Though less harmful than standard .22-caliber ammunition, plinking ammunition can usually be found in abundance. A single box of .22LR plinking ammunition will spawn 100 rounds when added to the player character's inventory.
.22LR round (junk)
|The following is based on Fallout: New Vegas cut content and has not been confirmed by canon sources.|
The Junk Rounds perk from the Dead Money add-on was at one point intended to create ammunition of a special subtype, called "junk" or "JNK", these rounds all provided the same modifiers regardless of caliber: x 0.75 to damage and 1.5x to condition. The rounds still remain present in game files but are not utilised within the game itself, and if obtained cannot be used in any weapons, even those chambered for the correct caliber.
Curiously, the presence of .22LR-caliber junk rounds indicates that the perk was to provide a recipe for crafting .22LR rounds, though the final version of the perk does not include one.
|End of information based on Fallout: New Vegas cut content.|
|.22LR round||x 1||x 1||x 1||x 1||No||None|
|.22LR, hollow point||x 1.75||x 3||x 1||x 1||No||None|
|.22LR, plinking||x 0.85||x 1||x 1||x 1||No||None|
|.22LR round (junk)||x 0.75||x 1||x 1.5||x 1||No||None|
- .22LR rounds are one of two ammunition types which weigh less than .01 units in Hardcore mode, the other being BBs.
- The 'LR' in '.22LR' stands for 'long rifle'.