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Rifles, Reloading, Optics, Equipment
Reloading
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<blockquote data-quote="Michael Eichele" data-source="post: 475157" data-attributes="member: 1007"><p>As a general rule, larger cases that use equal bullet diameters require slower powders than smaller cases. Also, equal size cases using smaller bullet diameters require slower powders. In addition, heavier bullets for a given case typically require slower powders for optimum and safe performance.</p><p></p><p>Examples would be the 308 versus the 30-06. The 06 can utilize more of a slower powder than a 308 for a given bullet weight. There are loads for the 30-06 that use RL19 where if ran in a 308 there is just not enough case capacity to make any real velocity.</p><p></p><p>The 308 versus the 260 remington. Same case, different bullet. The 260 will require a slower powder than the 308.</p><p></p><p>Comparing the 270 and 308, the 270 has more case capacity and less bore volume. It will require a slower powder unless youre comparing 200 grain 308 bullets to 120 grain 270 bullets, then they may be closer.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 475157, member: 1007"] As a general rule, larger cases that use equal bullet diameters require slower powders than smaller cases. Also, equal size cases using smaller bullet diameters require slower powders. In addition, heavier bullets for a given case typically require slower powders for optimum and safe performance. Examples would be the 308 versus the 30-06. The 06 can utilize more of a slower powder than a 308 for a given bullet weight. There are loads for the 30-06 that use RL19 where if ran in a 308 there is just not enough case capacity to make any real velocity. The 308 versus the 260 remington. Same case, different bullet. The 260 will require a slower powder than the 308. Comparing the 270 and 308, the 270 has more case capacity and less bore volume. It will require a slower powder unless youre comparing 200 grain 308 bullets to 120 grain 270 bullets, then they may be closer. [/QUOTE]
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