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Rifles, Reloading, Optics, Equipment
Reloading
How nonsense becomes fact.
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<blockquote data-quote="antelopedundee" data-source="post: 1905232" data-attributes="member: 107384"><p>Maybe a smith or someone who works in the business will chime in on the proof load thing.</p><p></p><p>It wasn't that long ago that I got an email from Hodgdon about working up loads for which little or no data exists. Anyone interested should contact them.</p><p></p><p></p><p>From the Hodgdon site.</p><p></p><p>""In conclusion, bullets with similar shapes and construction materials will utilize the same data. And, above all else, work up your loads by starting with the beginning load and increase charges in small increments, at all times watching for case head pressure signs and stiff extraction."" Stiff extraction. HMMM Weren't we warned about using that in this thread?</p><p>Funny I see no advice to buy a chrono and increase the powder charge until you hit our published velocity and then stop.</p><p>Sound familiar? I'm told that a 130 grain Sierra bullet will cause higher pressures than say a 130 grain Hornady bullet of like composition and caliber. I believe that that's somewhat true. Maybe the Sierra cores are harder?</p><p></p><p>Case head pressure signs? What could those be? Case head expansion? Flattening primers?</p></blockquote><p></p>
[QUOTE="antelopedundee, post: 1905232, member: 107384"] Maybe a smith or someone who works in the business will chime in on the proof load thing. It wasn't that long ago that I got an email from Hodgdon about working up loads for which little or no data exists. Anyone interested should contact them. From the Hodgdon site. ""In conclusion, bullets with similar shapes and construction materials will utilize the same data. And, above all else, work up your loads by starting with the beginning load and increase charges in small increments, at all times watching for case head pressure signs and stiff extraction."" Stiff extraction. HMMM Weren't we warned about using that in this thread? Funny I see no advice to buy a chrono and increase the powder charge until you hit our published velocity and then stop. Sound familiar? I'm told that a 130 grain Sierra bullet will cause higher pressures than say a 130 grain Hornady bullet of like composition and caliber. I believe that that's somewhat true. Maybe the Sierra cores are harder? Case head pressure signs? What could those be? Case head expansion? Flattening primers? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How nonsense becomes fact.
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