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Rifles, Reloading, Optics, Equipment
Reloading
When changing powder lots....
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<blockquote data-quote="Greyfox" data-source="post: 1080898" data-attributes="member: 10291"><p>When I have changed powder lots I will check the new powder for accuracy, velocity, and ES. It's been a crap shoot. I have seen identical results with different lots, but on occasion I have seen differences in the velocity. If this is the case, I will adjust the charge to match my original velocity then recheck accuracy and ES. A couple of years ago with my 6.5x284 a new lot of Retumbo required a 2 gr reduction to match the ballistics of my originsl load. It wasn't too much of a fuss, and my results with the new lot were identical once done. I recently acquired another case of Retumbo(new lot) for my 300WM. Out of curiosity I tested it in my 6.5x284 and results were identical to my last lot. It's more difficult these days, but it pays to buy a sufficient supply of the same lot of components when developing a long range load, particularly powder and bullets.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1080898, member: 10291"] When I have changed powder lots I will check the new powder for accuracy, velocity, and ES. It's been a crap shoot. I have seen identical results with different lots, but on occasion I have seen differences in the velocity. If this is the case, I will adjust the charge to match my original velocity then recheck accuracy and ES. A couple of years ago with my 6.5x284 a new lot of Retumbo required a 2 gr reduction to match the ballistics of my originsl load. It wasn't too much of a fuss, and my results with the new lot were identical once done. I recently acquired another case of Retumbo(new lot) for my 300WM. Out of curiosity I tested it in my 6.5x284 and results were identical to my last lot. It's more difficult these days, but it pays to buy a sufficient supply of the same lot of components when developing a long range load, particularly powder and bullets. [/QUOTE]
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Reloading
When changing powder lots....
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