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Rifles, Reloading, Optics, Equipment
Reloading
what the heck ?
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<blockquote data-quote="Barrelnut" data-source="post: 1127083" data-attributes="member: 74902"><p>If the new can of powder is not from the same lot, that could be an issue. Lot to lot variations can be a little crazy sometimes. This spring I started a new lot of H4350 that was about 100 FPS slower than a lot I was using the year before. I believe lot to lot variations can be about 3% at times. With the 7RM load running 2837 FPS that 3% difference in the lots would be about 85 FPS. </p><p></p><p>Same with the primers. Though I haven't noticed as much difference in lots, a brand change can make a difference of 25-30 FPS sometimes.</p><p></p><p>Might just have to adjust the load now to get back to that good node.</p></blockquote><p></p>
[QUOTE="Barrelnut, post: 1127083, member: 74902"] If the new can of powder is not from the same lot, that could be an issue. Lot to lot variations can be a little crazy sometimes. This spring I started a new lot of H4350 that was about 100 FPS slower than a lot I was using the year before. I believe lot to lot variations can be about 3% at times. With the 7RM load running 2837 FPS that 3% difference in the lots would be about 85 FPS. Same with the primers. Though I haven't noticed as much difference in lots, a brand change can make a difference of 25-30 FPS sometimes. Might just have to adjust the load now to get back to that good node. [/QUOTE]
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Reloading
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