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Cartridge Efficiency vs Recoil
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<blockquote data-quote="MajorSpittle" data-source="post: 1328644" data-attributes="member: 53101"><p>Of course changing the powder weight changes more then the bullet weight, because you are changing the bullet's velocity. </p><p></p><p>What I don't get with the formula is: Case capacity/Powder type isn't taken into account?</p><p></p><p>46 grains of some powder has the same energy as 60 grains of other powder depending on the cartridge it is used in. 46 grains of slow enough powder might only get 1500fps MV and 46 grains of another might get 3000fps MV with a 150gr bullet <--exaggerated expample for 308.</p><p></p><p>Being Energy is Mass X Velocity, in my example above the same weight powder, cartridge, bullet combination develops 2 times the energy depending on the type of powder.</p></blockquote><p></p>
[QUOTE="MajorSpittle, post: 1328644, member: 53101"] Of course changing the powder weight changes more then the bullet weight, because you are changing the bullet's velocity. What I don't get with the formula is: Case capacity/Powder type isn't taken into account? 46 grains of some powder has the same energy as 60 grains of other powder depending on the cartridge it is used in. 46 grains of slow enough powder might only get 1500fps MV and 46 grains of another might get 3000fps MV with a 150gr bullet <--exaggerated expample for 308. Being Energy is Mass X Velocity, in my example above the same weight powder, cartridge, bullet combination develops 2 times the energy depending on the type of powder. [/QUOTE]
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