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Rifles, Reloading, Optics, Equipment
Reloading
Quick Load Question
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<blockquote data-quote="asd9055" data-source="post: 2359837" data-attributes="member: 73445"><p>From my experience, if you take for example Lyman 46 edition, and Lyman 49th edition, in some of the calibers I used with IMR4350 the mxa loads has been reduced. I contact4ed IMR (Hodgdon actually as they own it) if the powder has changed. Their response was </p><p></p><p>"No, the formula for the IMR 4350 has not changed since it was first brought in the early 1950's. Data does change as the ability to more accurately measure the pressure goes up and brass and especially primers and bullets have changed a great deal. As a rule, primers are much hotter than they used to be and they contribute much more energy to the load now. Brass is different in capacity from brand to brand and bullets are generally longer in bearing surface as well as being of a harder gilding metal. All of these things drive pressure up meaning the data has to be reduced to keep the pressures from being excessively high"</p><p></p><p>So in my opinion, he is partially correct! again, My opionion!</p></blockquote><p></p>
[QUOTE="asd9055, post: 2359837, member: 73445"] From my experience, if you take for example Lyman 46 edition, and Lyman 49th edition, in some of the calibers I used with IMR4350 the mxa loads has been reduced. I contact4ed IMR (Hodgdon actually as they own it) if the powder has changed. Their response was "No, the formula for the IMR 4350 has not changed since it was first brought in the early 1950's. Data does change as the ability to more accurately measure the pressure goes up and brass and especially primers and bullets have changed a great deal. As a rule, primers are much hotter than they used to be and they contribute much more energy to the load now. Brass is different in capacity from brand to brand and bullets are generally longer in bearing surface as well as being of a harder gilding metal. All of these things drive pressure up meaning the data has to be reduced to keep the pressures from being excessively high" So in my opinion, he is partially correct! again, My opionion! [/QUOTE]
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Quick Load Question
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