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Rifles, Reloading, Optics, Equipment
Reloading
Powder to bullet comparison
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<blockquote data-quote="CONatureBoy" data-source="post: 2324460" data-attributes="member: 118769"><p>Light bullets need faster powders; heavy bullets, slower. Example using QuickLoad estimates: 300 RUM at SAAMI-spec COAL with 26" barrel.</p><p></p><p>Bullet Powder Max Charge Fill Ratio Peak Pressure Muzzle Velocity</p><p> (grains) (%) (at/below SAAMI limit) (fps)</p><p></p><p>Nosler Ballistic Tip 150 grain Reloder 22 92.5 96.6 at limit 3,361</p><p> Reloder 33 102.8 100.0 13 kpsi under 3,185</p><p></p><p>Berger Hybrid OTM 230 grain Reloder 22 81.2 81.2 at limit 2,809</p><p> Reloder 33 95.7 98.4 at limit 2,897 </p><p></p><p>The "wrong" powder costs you 100-200 fps in this example. In one case your fill ratio is likely unsafe with the wrong powder. Try to keep your fill ratio above 90%. See <a href="https://www.shootersforum.com/threads/loading-density-secondary-explosion.13083/" target="_blank">https://www.shootersforum.com/threads/loading-density-secondary-explosion.13083/</a> for the reasoning.</p></blockquote><p></p>
[QUOTE="CONatureBoy, post: 2324460, member: 118769"] Light bullets need faster powders; heavy bullets, slower. Example using QuickLoad estimates: 300 RUM at SAAMI-spec COAL with 26" barrel. Bullet Powder Max Charge Fill Ratio Peak Pressure Muzzle Velocity (grains) (%) (at/below SAAMI limit) (fps) Nosler Ballistic Tip 150 grain Reloder 22 92.5 96.6 at limit 3,361 Reloder 33 102.8 100.0 13 kpsi under 3,185 Berger Hybrid OTM 230 grain Reloder 22 81.2 81.2 at limit 2,809 Reloder 33 95.7 98.4 at limit 2,897 The "wrong" powder costs you 100-200 fps in this example. In one case your fill ratio is likely unsafe with the wrong powder. Try to keep your fill ratio above 90%. See [URL]https://www.shootersforum.com/threads/loading-density-secondary-explosion.13083/[/URL] for the reasoning. [/QUOTE]
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Powder to bullet comparison
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