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.
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New Member
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.
Mentor
Thanks for the data.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.Originally Posted by Johni
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.
Mentor
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]
Old Timer
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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