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Rifles, Reloading, Optics, Equipment
Reloading
Load Density, Bullet Jump, Case Air Space
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<blockquote data-quote="Muddyboots" data-source="post: 2262360" data-attributes="member: 63925"><p>Load density that I have gone by from Nosler:</p><p>"Load density is a calculation of case capacity versus powder bulk density. Case capacity is measured by taking a piece of firedbrass, filling it up with water and then loading a bullet into the case neck at the tested OACL listed in Nosler's Reloading Guide #7. The weight of water left in the brass after the bullet has been seated is the case capacity. Powder bulk density is how many grams of a particular powder fit into one liter. "</p><p></p><p><strong>As result of this thread, I have altered my understanding of load density. Another Eureka! from LRH!</strong></p><p></p><p>My thoughts were that load density calculated at bullet SAAMI COAL is the standard load density for the cartridge case volume. When the bullet is seated farther out, the load density is changed but seating it deeper than SAAMI COAL you are compressing the powder but <strong>not</strong> changing the load density <strong>which was wrong thought process. No clue why I thought that? I get seating bullet out further changes load density but no clue why I didn't think it seating deeper affected it same way. Never too old to get knuckles slapped!<img class="smilie smilie--emoji" loading="lazy" alt="😂" title="Face with tears of joy :joy:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f602.png" data-shortname=":joy:" /></strong></p><p> </p><p>This thread was started based upon the thought the "best solution for rifles is to choose bullet/powder combinations that come close to filling the cartridge to the base of a seated bullet. This will typically reduce standard deviations and accounts for one of the reasons why slower powders, and their fuller cases, tend to produce the best accuracy in rifles." (Western Powders).</p><p></p><p>The interesting thought is how to measure the case volume under the bullet in a "easy button" method that is accurate and reproducible for consistency.</p><p></p><p>Is there another thread on load density calculation methods?</p></blockquote><p></p>
[QUOTE="Muddyboots, post: 2262360, member: 63925"] Load density that I have gone by from Nosler: "Load density is a calculation of case capacity versus powder bulk density. Case capacity is measured by taking a piece of firedbrass, filling it up with water and then loading a bullet into the case neck at the tested OACL listed in Nosler’s Reloading Guide #7. The weight of water left in the brass after the bullet has been seated is the case capacity. Powder bulk density is how many grams of a particular powder fit into one liter. " [B]As result of this thread, I have altered my understanding of load density. Another Eureka! from LRH![/B] My thoughts were that load density calculated at bullet SAAMI COAL is the standard load density for the cartridge case volume. When the bullet is seated farther out, the load density is changed but seating it deeper than SAAMI COAL you are compressing the powder but [B]not[/B] changing the load density [B]which was wrong thought process. No clue why I thought that? I get seating bullet out further changes load density but no clue why I didn't think it seating deeper affected it same way. Never too old to get knuckles slapped!😂[/B] This thread was started based upon the thought the "best solution for rifles is to choose bullet/powder combinations that come close to filling the cartridge to the base of a seated bullet. This will typically reduce standard deviations and accounts for one of the reasons why slower powders, and their fuller cases, tend to produce the best accuracy in rifles." (Western Powders). The interesting thought is how to measure the case volume under the bullet in a "easy button" method that is accurate and reproducible for consistency. Is there another thread on load density calculation methods? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Load Density, Bullet Jump, Case Air Space
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