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Rifles, Reloading, Optics, Equipment
Reloading
Not getting velocities as posted in Hornady RL manual on 6.5PRC
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<blockquote data-quote="Muddyboots" data-source="post: 2084291" data-attributes="member: 63925"><p>What is the COAL for the load? Max COAL is 2.955 which may be also part of the equation. A shorter COAL sometimes generates more velocities with case density, pressure, more bullet in case et al. I've seen it with several other bullets (i.e.190ABLR) in 300WSM.</p><p></p><p>Brian Litz:</p><p><strong>Effects of Seating Depth / COAL on Pressure and Velocity</strong></p><p>The primary effect of loading a cartridge long is that it leaves more internal volume inside the cartridge. This extra internal volume has a well known effect; <em>for a given powder charge</em>, there will be less pressure and less velocity produced because of the extra empty space. Another way to look at this is you have to use more powder to achieve the same pressure and velocity when the bullet is seated out long.</p></blockquote><p></p>
[QUOTE="Muddyboots, post: 2084291, member: 63925"] What is the COAL for the load? Max COAL is 2.955 which may be also part of the equation. A shorter COAL sometimes generates more velocities with case density, pressure, more bullet in case et al. I've seen it with several other bullets (i.e.190ABLR) in 300WSM. Brian Litz: [B]Effects of Seating Depth / COAL on Pressure and Velocity[/B] The primary effect of loading a cartridge long is that it leaves more internal volume inside the cartridge. This extra internal volume has a well known effect; [I]for a given powder charge[/I], there will be less pressure and less velocity produced because of the extra empty space. Another way to look at this is you have to use more powder to achieve the same pressure and velocity when the bullet is seated out long. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Not getting velocities as posted in Hornady RL manual on 6.5PRC
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