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Hunting
Long Range Hunting & Shooting
300 Weatherby Using Hogdon US 869
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<blockquote data-quote="Varminator 911" data-source="post: 1496143" data-attributes="member: 9705"><p>The 30-378 and 6.5-300 both have larger case capacity to bore ratio than the 300 weatherby. It's the case capacity to bore ratio that determines the speed of powder that works best. The 30-378 and 6.5-300 are both way over bore capacity. The 300 less so.</p><p></p><p>If you neck the 378 down to 6.5 you'll need an even slower powder than any of the above. If you were to neck the 300 up to 375 you'd need a faster powder than any above.</p></blockquote><p></p>
[QUOTE="Varminator 911, post: 1496143, member: 9705"] The 30-378 and 6.5-300 both have larger case capacity to bore ratio than the 300 weatherby. It's the case capacity to bore ratio that determines the speed of powder that works best. The 30-378 and 6.5-300 are both way over bore capacity. The 300 less so. If you neck the 378 down to 6.5 you'll need an even slower powder than any of the above. If you were to neck the 300 up to 375 you'd need a faster powder than any above. [/QUOTE]
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300 Weatherby Using Hogdon US 869
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