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Rifles, Reloading, Optics, Equipment
Reloading
Does twist rate effect velocity
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<blockquote data-quote="Shane Lindsey" data-source="post: 988444" data-attributes="member: 25831"><p>Greetings,</p><p>I have a 270 Win with a 26" 1:8 twist Hart barrel on it. </p><p>I have loaded the Matrix 165s and getting lower velocities than I thought I would get based on what I have read others have gotten with similar setups. I am getting pressure signs lower than what I would have expected. </p><p>Have tried H4831sc only so far. </p><p>Win case</p><p>CCI 200</p><p>Matrix 165 gr VLD</p><p>Seated .016" out of lands (best accuracy)</p><p>Velocity 2640 FPS at sea level in CA</p><p> </p><p>So does twist rate effect velocity? Pressure? </p><p> </p><p>Any powder suggestions that may increase velocity without spiking pressure?</p><p> </p><p>Shane</p></blockquote><p></p>
[QUOTE="Shane Lindsey, post: 988444, member: 25831"] Greetings, I have a 270 Win with a 26" 1:8 twist Hart barrel on it. I have loaded the Matrix 165s and getting lower velocities than I thought I would get based on what I have read others have gotten with similar setups. I am getting pressure signs lower than what I would have expected. Have tried H4831sc only so far. Win case CCI 200 Matrix 165 gr VLD Seated .016" out of lands (best accuracy) Velocity 2640 FPS at sea level in CA So does twist rate effect velocity? Pressure? Any powder suggestions that may increase velocity without spiking pressure? Shane [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Does twist rate effect velocity
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