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Rifles, Reloading, Optics, Equipment
Reloading
Weighing brass questions
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<blockquote data-quote="J E Custom" data-source="post: 1854135" data-attributes="member: 2736"><p>My logic for weight sorting is only to get the cases as close to the same as possible. the idea of case prep is to get the case as physically close as possible on the outside and then weigh them or volume test them for the brass thickness difference between cases. If the cases are identical on the outside, the difference lie's in the thickness of the brass. This thickness, changes the volume of the case, and weighing or volume testing and sorting by volume or weighing can make the loaded ammo react more consistent when fired.</p><p></p><p>I have prepped many cases and sorted them into batches and the different batches produced different results with the same load, and to get the same outcome, it became necessary to adjust the powder charge 1 or more Tenths of a grain. So if volume makes a difference, I personally believe weighing or volume testing does matter. </p><p></p><p>Also I have never seen a difference of 15 to 20 grains in any brass after I prepped it properly. I will normally end up with 2 different batches and some of the worst brass has produced 3 batches and 2 or 3 cases that ended up 4 or 5 grains higher or lower than the rest. Back when I shot high power matches, it was very common to use the military brass from Lake City or Frankfort Armory and even then, you didn't mix them because they were different volumes. And if you wanted to use commercial brass. you had to work up a different load just like you did for the military brass.</p><p></p><p>I also found that different years of the LC brass shot better than other years that I worked up loads for, and so if you wanted the best accuracy you stuck to that year or worked up another accuracy for the different years you wanted to use. At 200 yards it was hard to tell the difference but at 600 or a 1000 it was noticeable. So why does it make a difference whether you mix brands of cases or not. Different brands are different and have differences in volume so we don't mix them. That is why I believe that doing everything I can to make the brass uniformly consistent can do nothing but help.</p><p></p><p>Just Me</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1854135, member: 2736"] My logic for weight sorting is only to get the cases as close to the same as possible. the idea of case prep is to get the case as physically close as possible on the outside and then weigh them or volume test them for the brass thickness difference between cases. If the cases are identical on the outside, the difference lie's in the thickness of the brass. This thickness, changes the volume of the case, and weighing or volume testing and sorting by volume or weighing can make the loaded ammo react more consistent when fired. I have prepped many cases and sorted them into batches and the different batches produced different results with the same load, and to get the same outcome, it became necessary to adjust the powder charge 1 or more Tenths of a grain. So if volume makes a difference, I personally believe weighing or volume testing does matter. Also I have never seen a difference of 15 to 20 grains in any brass after I prepped it properly. I will normally end up with 2 different batches and some of the worst brass has produced 3 batches and 2 or 3 cases that ended up 4 or 5 grains higher or lower than the rest. Back when I shot high power matches, it was very common to use the military brass from Lake City or Frankfort Armory and even then, you didn't mix them because they were different volumes. And if you wanted to use commercial brass. you had to work up a different load just like you did for the military brass. I also found that different years of the LC brass shot better than other years that I worked up loads for, and so if you wanted the best accuracy you stuck to that year or worked up another accuracy for the different years you wanted to use. At 200 yards it was hard to tell the difference but at 600 or a 1000 it was noticeable. So why does it make a difference whether you mix brands of cases or not. Different brands are different and have differences in volume so we don't mix them. That is why I believe that doing everything I can to make the brass uniformly consistent can do nothing but help. Just Me J E CUSTOM [/QUOTE]
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Weighing brass questions
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