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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
16.5 Inch 6mm Creedmoor Performance - The Perfect Youth Hunting Rifle?
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<blockquote data-quote="QuietTexan" data-source="post: 2534597" data-attributes="member: 116181"><p>Both those cases (243 especially) are overbore and are in the "magnum" class for the bore diameter, so logically they would be louder because they'll have a much higher muzzle pressure. A 16" 243 running H1000 would have a muzzle pressure of almost 16k PSI, but a 26"</p><p> barrel wouldn't crack 10k PSI. A 30-06 would run ~10% less pressure compared to a 243 at any given muzzle length because of the larger bore size. Suppressor effectiveness would also be impacted by the size of the opening - if you aren't running a 6mm cap then there could be a 2-6 dB difference between the 6mm bullet going through and a bullet the caliber of the opening going through.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2534597, member: 116181"] Both those cases (243 especially) are overbore and are in the "magnum" class for the bore diameter, so logically they would be louder because they'll have a much higher muzzle pressure. A 16" 243 running H1000 would have a muzzle pressure of almost 16k PSI, but a 26" barrel wouldn't crack 10k PSI. A 30-06 would run ~10% less pressure compared to a 243 at any given muzzle length because of the larger bore size. Suppressor effectiveness would also be impacted by the size of the opening - if you aren't running a 6mm cap then there could be a 2-6 dB difference between the 6mm bullet going through and a bullet the caliber of the opening going through. [/QUOTE]
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16.5 Inch 6mm Creedmoor Performance - The Perfect Youth Hunting Rifle?
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