what is meant by  grain, etc on ammo boxes?

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  • 1 month ago

    It is the weight of the bullet. Also a weight measure for powder.

    5 grains equals 1 gram of weight.

    There are 437.5 grains in one ounce.

    Like my .45 acp with 230 grain bullet is close to 1/2 ounce.

  • 1 month ago

    Kilogram, gram,  milligram,  microgram.   Metric measurements of weight. What most of the world uses.   Pound, ounce, grain.    What we in the USA use to measure weight.    On the ammo,  it is the measurement of weight of the BULLET.  If you are reloading you will also use it to measure the weight of the POWDER you put into the case.    A quick conversion is 15 grains to a gram.   A key point is to make sure you are using the right measurements.   If you get confused and put in 15 grams of powder when it should be 15 grains you will really blow up your gun.   Best way to avoid it is not to use measuring tools that have BOTH measurements on them.    Get a powder scale that only shows grains.   Only weight bullets in grains.  Etc.

  • Quinn
    Lv 6
    1 month ago

    The word "grain" in the context of ammunition is a unit of measure for mass.  1 grain is .0648 gram and on ammo boxes it is use to designate the mass of the bullet or the amount of propellant in the case.

  • 1 month ago

    On ammo boxes the grain is talking about the weight of the bullet.  The actual projectile weight.  

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  • 1 month ago

    It's a measurement of weight.  

  • C T M
    Lv 7
    2 months ago

    There are 7000 grains in one pound. The grain unit you see on an ammo box is how much the bullet itself weighs. The bullet is the projectile portion of a loaded cartridge. A cartridge consists of the casing, the primer, the powder and the bullet (or projectile) The powder charge is weighed in grains as well but manufacturers do not list the powder type or weight on their boxes, but they do list the bullet type and weight.

  • L.N.
    Lv 7
    2 months ago

    Grains are a unit of weight equal to 0.0647989 grams. Very useful for the tiny weight of powder charges and since it is used for weighing powder it makes sense to use the same units for the bullet weight too so you only need one scale setting when reloading.  

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