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Rifles, Reloading, Optics, Equipment
Reloading
Vastly differing load recommendations
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<blockquote data-quote="Buster Hemlock" data-source="post: 2021870" data-attributes="member: 109327"><p>The GMX is a mono bullet and the Sierra is a cup and core. Monos typically have higher engraving pressure going down the barrel because it doesn't have the soft lead core like a cup and core so that's why the difference in charges for those two bullets. IMR is owned by Hodgdon as well as Winchester powder, Accurate powder and Ramshot. Powder chemistry and allowable pressures have changed some but since you will be using a new lot of powder you should reduce your charge and work back up anyways.</p></blockquote><p></p>
[QUOTE="Buster Hemlock, post: 2021870, member: 109327"] The GMX is a mono bullet and the Sierra is a cup and core. Monos typically have higher engraving pressure going down the barrel because it doesn't have the soft lead core like a cup and core so that's why the difference in charges for those two bullets. IMR is owned by Hodgdon as well as Winchester powder, Accurate powder and Ramshot. Powder chemistry and allowable pressures have changed some but since you will be using a new lot of powder you should reduce your charge and work back up anyways. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Vastly differing load recommendations
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