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Thread: Collecting Dimensions - Bullet Data

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  1. #101
    Join Date
    1st January 2013
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    Georgia Arms

    Purchased some Georgia Arms bullets last week. Here's my measurements:

    Georgia Arms
    L45AA LSWC 200gr
    Diam:0.453
    Overall:0.6455
    Body:0.3305

    These are listed as 0.452 diam but I get 0.453. Could be my inaccuracy.

  2. #102
    Join Date
    25th September 2006
    Location
    South of Lake Superior
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    Thanks for the data.
    Quote Originally Posted by Johni
    These are listed as 0.452 diam but I get 0.453. Could be my inaccuracy.
    Few bullets have bases that are really, truly round. Cast lead ones tend to vary the most, so it's best to make several OD measurements across different diameters around the bullet and average the high and low readings.

    And many bullets will have different OD's at the front and rear of the body - if you look and measure close enough. A single OD measurement can be very misleading.

    Regards
    When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind. [Lord Kelvin]
    Last edited by niemi24s; 19th March 2013 at 10:34.


  3. #103
    Join Date
    25th September 2006
    Location
    South of Lake Superior
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    34
    Post #16 used to contain an image showing a method for measuring the body length of a bullet (from which the nose length and minimum COAL could be found) but it disappeared. Here it is again:



    It would be useful if Post #16 could be edited to show this image because it's referred to several times throughout this thread.

    Regards
    When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind. [Lord Kelvin]


  4. #104
    Join Date
    27th July 2008
    Location
    Minnesota
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    255
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    Penn 200gr LSWC

    I did not see this one:

    Penn 200gr LSWC, BB
    Length: 0.655
    Base: 0.328
    Calculated Nose: 0.327
    Diameter: 0.452

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