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Rifles, Reloading, Optics, Equipment
Reloading
Interesting Load Development Results
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<blockquote data-quote="Jud96" data-source="post: 2007731" data-attributes="member: 69478"><p>Extreme spread isn't everything. Erik Cortina shot a 1.3" 5 shot group with his F-Class rifle on camera at 1000 yards and had an ES of 18 for those 5 shots. Yes ES is important, but I have chased small ES and have had much larger and much more finicky loads. What I am showing is a load that consistently hits in the same general point of impact, within 1/2", but also has a 0.5gr wide flat spot in velocity. If you load in the middle of that like I did at 69.7, you get a group that's 1/4 MOA and an ES of 24 for 5 shots. This is a magnum cartridge in a hunting rifle. This isn't a 6BR 20lb bench rifle. The goal is consistency both in velocity and accuracy as well as point of impact across a span of powder charges.</p></blockquote><p></p>
[QUOTE="Jud96, post: 2007731, member: 69478"] Extreme spread isn’t everything. Erik Cortina shot a 1.3” 5 shot group with his F-Class rifle on camera at 1000 yards and had an ES of 18 for those 5 shots. Yes ES is important, but I have chased small ES and have had much larger and much more finicky loads. What I am showing is a load that consistently hits in the same general point of impact, within 1/2”, but also has a 0.5gr wide flat spot in velocity. If you load in the middle of that like I did at 69.7, you get a group that’s 1/4 MOA and an ES of 24 for 5 shots. This is a magnum cartridge in a hunting rifle. This isn’t a 6BR 20lb bench rifle. The goal is consistency both in velocity and accuracy as well as point of impact across a span of powder charges. [/QUOTE]
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Interesting Load Development Results
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