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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cartridge Efficiency
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<blockquote data-quote="Bart B" data-source="post: 1149922" data-attributes="member: 5302"><p>Cartridge efficiency to me is how many fps per grain of a given powder for a given bullet weight and caliber in the same barrel length. Barrels for a given caliber must have identical rifling, bore and groove dimensions and peak pressure must be at SAAMI spec for the cartridge.</p><p></p><p>For example, think about a .30-06 with 100 and 200 grain bullets fired with IMR4198 and Retumbo.</p></blockquote><p></p>
[QUOTE="Bart B, post: 1149922, member: 5302"] Cartridge efficiency to me is how many fps per grain of a given powder for a given bullet weight and caliber in the same barrel length. Barrels for a given caliber must have identical rifling, bore and groove dimensions and peak pressure must be at SAAMI spec for the cartridge. For example, think about a .30-06 with 100 and 200 grain bullets fired with IMR4198 and Retumbo. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Cartridge Efficiency
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