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Rifles, Reloading, Optics, Equipment
Reloading
powder charge vs velocity
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<blockquote data-quote="Lefty7mmstw" data-source="post: 654752" data-attributes="member: 48043"><p>I've seen charges in my last 7stw that were below book max that were actually over-pressure. I had a strain guage on that rifle, and it really hit home how hard things were really being pushed when stuff got "warm". If a load was stiff on the bolt or chewed on the brass, it was over pressure. The 6.5x284 is one of those calibers what have some chamber variances, so you may be able go get away with pushing charge weight a bit, but you NEED to use your velocities as a speed limit. </p><p>An oehler chronograph wouldn't hurt either, as it measures twice. I don't think that my model 35 is in production any longer, though.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 654752, member: 48043"] I've seen charges in my last 7stw that were below book max that were actually over-pressure. I had a strain guage on that rifle, and it really hit home how hard things were really being pushed when stuff got "warm". If a load was stiff on the bolt or chewed on the brass, it was over pressure. The 6.5x284 is one of those calibers what have some chamber variances, so you may be able go get away with pushing charge weight a bit, but you NEED to use your velocities as a speed limit. An oehler chronograph wouldn't hurt either, as it measures twice. I don't think that my model 35 is in production any longer, though. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
powder charge vs velocity
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