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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrel length vs. powder usage
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<blockquote data-quote="Screwey1" data-source="post: 891048" data-attributes="member: 74741"><p>What barrel length are you loading? According to my burn rate chart that lists 97 different rifle powders with number ,1 being fastest and 97 being slowest, R-22 is number 89, IMR 7828 is number 90, ad H-4831 is number 85. All the powders you listed are relatively slow burners. </p><p>Retumbo is slower at number 94 which is why I wondered if it could be used in a longer barrel.</p><p>With the powder shortages these days and the fact that I am the proud owner of like 24 pounds of Retumbo, I wanted to keep my options open.</p><p>This does not mean I am dead set on using this ( have 2 other rifles that eat it happily ), I run several powders for load development always but if a 26 inch barrel is necessary in an effort to have this powder as a good option, well it's worth it, however if I am spitting into a fan, then he extra 2 inches of barrel is not worth it.</p><p>I was always of the thought that a slow powder in a long barrel would produce better velocities, but that doesn't make me right.</p></blockquote><p></p>
[QUOTE="Screwey1, post: 891048, member: 74741"] What barrel length are you loading? According to my burn rate chart that lists 97 different rifle powders with number ,1 being fastest and 97 being slowest, R-22 is number 89, IMR 7828 is number 90, ad H-4831 is number 85. All the powders you listed are relatively slow burners. Retumbo is slower at number 94 which is why I wondered if it could be used in a longer barrel. With the powder shortages these days and the fact that I am the proud owner of like 24 pounds of Retumbo, I wanted to keep my options open. This does not mean I am dead set on using this ( have 2 other rifles that eat it happily ), I run several powders for load development always but if a 26 inch barrel is necessary in an effort to have this powder as a good option, well it's worth it, however if I am spitting into a fan, then he extra 2 inches of barrel is not worth it. I was always of the thought that a slow powder in a long barrel would produce better velocities, but that doesn't make me right. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrel length vs. powder usage
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