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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 x 284 h4821sc 51 gr. 140vdl. velocity?
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<blockquote data-quote="Mikecr" data-source="post: 701039" data-attributes="member: 1521"><p>Guess I should atleast try to answer OP's question!</p><p>~2730fps and only 49.1Kpsi</p><p></p><p>Your barrel is too short for this cartridge, and even with 3.5gr less powder than SBruce, your muzzle pressures are higher than his.</p><p>Your case fill is only ~90%</p><p>With this, the powder and the short barrel, I would expect high extreme spreads.</p><p>You did not say if your bullets are touching the lands. This would bump up the velocity from 2730.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 701039, member: 1521"] Guess I should atleast try to answer OP's question! ~2730fps and only 49.1Kpsi Your barrel is too short for this cartridge, and even with 3.5gr less powder than SBruce, your muzzle pressures are higher than his. Your case fill is only ~90% With this, the powder and the short barrel, I would expect high extreme spreads. You did not say if your bullets are touching the lands. This would bump up the velocity from 2730. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 x 284 h4821sc 51 gr. 140vdl. velocity?
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