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Rifles, Reloading, Optics, Equipment
Reloading
Same volume of powder, different weight?
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<blockquote data-quote="Fitch" data-source="post: 324199" data-attributes="member: 19372"><p>Plus or minus a full grain makes no difference? As a general statement I respectfully disagree. That's a pretty big charge variation. I've never seen a "node" that was 2 grains wide with no POI variation. </p><p> </p><p>I have seen group sizes that didn't change significantly for that much variation when doing ladder testing, but POI certainly does, and POI is what kills game.</p><p> </p><p>That might apply if you are running 100g loads, or shooting at short range. But if you are running 20g loads the ES will be awful loading +/- 1 grain. +/- 1g is 110 fps in my .30-06 (my normal ES is 10 to 20 fps). It would be 512 fps in my .22 Hornet, and that "definitely" matters in the Hornet. In the .30-06 it's 3/4" at 300 yards. The Hornet would be all over the place at 150 yards. </p><p> </p><p>YMMV</p><p> </p><p>Fitch</p></blockquote><p></p>
[QUOTE="Fitch, post: 324199, member: 19372"] Plus or minus a full grain makes no difference? As a general statement I respectfully disagree. That's a pretty big charge variation. I've never seen a "node" that was 2 grains wide with no POI variation. I have seen group sizes that didn't change significantly for that much variation when doing ladder testing, but POI certainly does, and POI is what kills game. That might apply if you are running 100g loads, or shooting at short range. But if you are running 20g loads the ES will be awful loading +/- 1 grain. +/- 1g is 110 fps in my .30-06 (my normal ES is 10 to 20 fps). It would be 512 fps in my .22 Hornet, and that "definitely" matters in the Hornet. In the .30-06 it's 3/4" at 300 yards. The Hornet would be all over the place at 150 yards. YMMV Fitch [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Same volume of powder, different weight?
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