Ammunition (informally ammo) is the material fired, scattered, dropped or detonated from any weapon or weapon system. Ammunition is both expendable weapons (e.g., bombs, missiles, grenades, land mines) and the component parts of other weapons that create the effect on a target (e.g., bullets and warheads). Nearly all mechanical weapons require some form of ammunition to operate.
The term ammunition can be traced back to the mid-17th century. The word comes from the French la munition, for the material used for war. Ammunition and munitions are often used interchangeably, although munition now usually refers to the actual weapons system with the ammunition required to operate it. In some languages other than English ammunition is still referred to as munition, such as French ("munitions"), German ("Munition"), Italian ("munizione") or Portuguese ("munição").
The purpose of ammunition is to project a force against a selected target to have an effect (usually, but not always, lethal). The most iconic example of ammunition is the firearm cartridge, which includes all components required to deliver the weapon effect in a single package. Until the 20th century, black powder was the most common explosive used but has now been replaced in nearly all cases by modern compounds.
Ammunition comes in a great range of sizes and types and is often designed to work only in specific weapons systems. However, there are internationally recognized standards for certain ammunition types (e.g., 5.56×45mm NATO) that enable their use across different weapons and by different users. There are also specific types of ammunition that are designed to have a specialized effect on a target, such as armor-piercing shells and tracer ammunition, used only in certain circumstances. Ammunition is commonly labeled or colored in a specific manner to assist in the identification and to prevent the wrong ammunition types from being used accidentally or inappropriately.

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  1. D

    New Member To This Forum

    Howdy, I'm here to learn about weapons in general.
  2. M

    Stores with bulk ammo at reasonable prices around Phoenix?

    New to the great State of AZ. Does anyone know any gun/ammo stores in the Phoenix area(1-2 hours drive is fine) with bulk 9mm and 223/556(1000-round boxes) at reasonable prices? With ammo prices down somewhat, I am looking to get back to training/shooting. I used to shoot ~1000 rounds of...
  3. Old18C

    For anyone looking for ammo

    Here is a link to ammo seek not always the best but a great spot to look for lower-priced ammo. There are some sales that don't make it but most do. Ammo Seek
  4. Mrjenkins

    9x18 ammo question

    I found a 9x18 box of 16 rounds. Anyone know what these are? I bought them because ammo is ammo and that's all they had. I typically will grab 9x18 if I see it on the shelf. I've never seen these before
  5. Vaporzz

    LIGHTNING AMMO 9MM Brass?

    Pony Express just dropped off some Lightning Brass, I ran across one of those deals you can't let go by! So I did my due diligence and found that the brass is not to bad, it's your typical once fired cleaned and polished, you still need to de-prime ofcourse... Reviews were not the best on there...
  6. ynotAZ

    National  And you wonder why there is an ammo shortage

    Biden must protect Hunter's investments in the Ukraine. 88 tons of ammo
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