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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Understanding cartridge efficiency
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<blockquote data-quote="antelopedundee" data-source="post: 1915436" data-attributes="member: 107384"><p>So if you take my earlier example of the .284 Win and shorten the case and increase the diameter until it is frisbee shaped and load both cases with the same amount of the same powder will you get the same velocity? Has anyone ever tried this to see if it is true? Taking the .25-06AI and reducing case length until it is equal to the .25-06 will likely give near identical velocities since case design has not changed much. Course the whole idea for the .25-06AI is to get higher velocity at the expense of more powder.</p><p></p><p>While I don't own one or have the desire to own one it seems to me that the 6.5 Creedmoor is a more efficient cartridge than some larger capacity cartridges. For the most part a 200 fps difference in mv won't have that much effect at ranges at which a lot of deer sized critters are taken.</p></blockquote><p></p>
[QUOTE="antelopedundee, post: 1915436, member: 107384"] So if you take my earlier example of the .284 Win and shorten the case and increase the diameter until it is frisbee shaped and load both cases with the same amount of the same powder will you get the same velocity? Has anyone ever tried this to see if it is true? Taking the .25-06AI and reducing case length until it is equal to the .25-06 will likely give near identical velocities since case design has not changed much. Course the whole idea for the .25-06AI is to get higher velocity at the expense of more powder. While I don't own one or have the desire to own one it seems to me that the 6.5 Creedmoor is a more efficient cartridge than some larger capacity cartridges. For the most part a 200 fps difference in mv won't have that much effect at ranges at which a lot of deer sized critters are taken. [/QUOTE]
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Understanding cartridge efficiency
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