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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrel length vs. powder usage
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<blockquote data-quote="MontanaRifleman" data-source="post: 894382" data-attributes="member: 11717"><p>When I started loading for the 7 RM in 88, IMR 4831 gave me the best velocity results @ ~ 3000 fps with a 160 gr bullet out of a 24" barrel. Since then, Retumbo and RL17 were developed and to date they have given me my best velocities with 3100 and 3150 fps respectively. I considered RL17 to be too fast as it only filled the case ~ 85%. Retumbo filled the case ~ 99%.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 894382, member: 11717"] When I started loading for the 7 RM in 88, IMR 4831 gave me the best velocity results @ ~ 3000 fps with a 160 gr bullet out of a 24" barrel. Since then, Retumbo and RL17 were developed and to date they have given me my best velocities with 3100 and 3150 fps respectively. I considered RL17 to be too fast as it only filled the case ~ 85%. Retumbo filled the case ~ 99%. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrel length vs. powder usage
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