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Rifles, Reloading, Optics, Equipment
Reloading
my loads do not approach reloading book velocities?
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<blockquote data-quote="dah605" data-source="post: 926417" data-attributes="member: 63391"><p>Also compare the brand of case and primer to the published load data. Different brands of cases have different capacities, which directly relates to the pressure. Seating depth can also have an impact on the pressure curve.</p><p></p><p>I haven't done any direct comparisons of the various primers, so I can't speak to that as something that would be a big impact on velocity, however, I know to work up a load after changing the primer. This tells me that they can have an impact on the overall pressure.</p><p></p><p>As far as chronographs go, the placement of the chronograph can also show a difference, but I would think that the published data would be using something like an Oehler out in front of the barrel. I've seen higher readings from my Magnetospeed because it is right on the muzzle when compared to my CE chrono.</p><p></p><p>-David</p></blockquote><p></p>
[QUOTE="dah605, post: 926417, member: 63391"] Also compare the brand of case and primer to the published load data. Different brands of cases have different capacities, which directly relates to the pressure. Seating depth can also have an impact on the pressure curve. I haven't done any direct comparisons of the various primers, so I can't speak to that as something that would be a big impact on velocity, however, I know to work up a load after changing the primer. This tells me that they can have an impact on the overall pressure. As far as chronographs go, the placement of the chronograph can also show a difference, but I would think that the published data would be using something like an Oehler out in front of the barrel. I've seen higher readings from my Magnetospeed because it is right on the muzzle when compared to my CE chrono. -David [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
my loads do not approach reloading book velocities?
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