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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 RUM, 230 Berger, Retumbo load
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<blockquote data-quote="brentc" data-source="post: 734475" data-attributes="member: 16938"><p>That's surprising, considering I can drive the 230 at 2800 fps with 75.5 grains of Retumbo in a 300 Win mag. </p><p> </p><p>I believe you could drive them harder. Did you try pushing past 89 grains? If you're pushing the 210s with 94.7 grains, I'd say you're 230 load should be approximately 2 grains less powder. One of the trends I've seen while reloading, and it happens often, is that your powder charge and bullet weight has a 10 to 1 inverse relationship. For every 1.0 grain of bullet weight increased or decreased. The powder charge is inversely adjusted by .1 grain.</p><p> </p><p>For instance if you want to increase your bullet weight 20 grains, your load should fall in at around 2 grains less powder. The same rules apply though, work up carefully.</p></blockquote><p></p>
[QUOTE="brentc, post: 734475, member: 16938"] That's surprising, considering I can drive the 230 at 2800 fps with 75.5 grains of Retumbo in a 300 Win mag. I believe you could drive them harder. Did you try pushing past 89 grains? If you're pushing the 210s with 94.7 grains, I'd say you're 230 load should be approximately 2 grains less powder. One of the trends I've seen while reloading, and it happens often, is that your powder charge and bullet weight has a 10 to 1 inverse relationship. For every 1.0 grain of bullet weight increased or decreased. The powder charge is inversely adjusted by .1 grain. For instance if you want to increase your bullet weight 20 grains, your load should fall in at around 2 grains less powder. The same rules apply though, work up carefully. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 RUM, 230 Berger, Retumbo load
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