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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Chamber pressure changes with altitude
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<blockquote data-quote="Michael Eichele" data-source="post: 1221353" data-attributes="member: 1007"><p>Keep us posted. Let us know your load specs too. In my experiences, it's been loads with poor densities that have yielded higher velocities at higher altitudes. For example: my 300 win mag loaded with 71.5 grains of H1000. Clearly under filled. The other, my 6.5-284 running 51.0 grains 4831SC. Again, a very under filled case. My high load density 308 loads never seem to suffer.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 1221353, member: 1007"] Keep us posted. Let us know your load specs too. In my experiences, it's been loads with poor densities that have yielded higher velocities at higher altitudes. For example: my 300 win mag loaded with 71.5 grains of H1000. Clearly under filled. The other, my 6.5-284 running 51.0 grains 4831SC. Again, a very under filled case. My high load density 308 loads never seem to suffer. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Chamber pressure changes with altitude
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