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Rifles, Reloading, Optics, Equipment
Reloading
How do reloading manuals decide Min/Max powder charge
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<blockquote data-quote="tankgijohn72" data-source="post: 1418960" data-attributes="member: 77441"><p>A couple of manufacturers I have been to have a ballistics lab that use a pressure barrel ported for calibrated pressure gauges. Typically they test to CIP spec for ammunition. Look up the symbol for it and you will see it on the box of ammunition. I have to assume that data developed by hodgdon etc is developed in a similar manner. Maximum powder charge can be set by pressure limits or by whatever they decide to use. I am in load development for a 26 nosler and the max charges listed by hodgdon and nosler are quite different. Hodgdon went to approximately 64,000psi and listed that as max pressure. Nosler lists loads that are higher and are probably pushing high 60s or low 70s.</p></blockquote><p></p>
[QUOTE="tankgijohn72, post: 1418960, member: 77441"] A couple of manufacturers I have been to have a ballistics lab that use a pressure barrel ported for calibrated pressure gauges. Typically they test to CIP spec for ammunition. Look up the symbol for it and you will see it on the box of ammunition. I have to assume that data developed by hodgdon etc is developed in a similar manner. Maximum powder charge can be set by pressure limits or by whatever they decide to use. I am in load development for a 26 nosler and the max charges listed by hodgdon and nosler are quite different. Hodgdon went to approximately 64,000psi and listed that as max pressure. Nosler lists loads that are higher and are probably pushing high 60s or low 70s. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How do reloading manuals decide Min/Max powder charge
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