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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What is going on with Nosler?
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<blockquote data-quote="PNWdude67" data-source="post: 2436639" data-attributes="member: 110615"><p>I also know Nosler folks, and your answer is spot on. My son works there. However, since I have 6000 140 RDF blems and 2000 firsts I decided to weigh and measure 10 of each and also 10 190 Berger LRHT that I had from a box that was sitting next to the scale. The dimensional measurements of all 3 bullets were equally precise. The weight was not. Here is the variance of a sample size of 10 bullets each:</p><p></p><p>190 LRHT: 190.22, ES 0.14 SD .056 95% CI ~.02% 99.999% CI ~.03% really really good</p><p></p><p>140 RDF: 140.34 ES .20 SD .071 95% CI ~.03% 99.999% CI ~.07% really good </p><p></p><p>140 RDF Blem: 140.39 ES .72 SD .337 95% CI ~.15% 99.999% CI ~.34% good </p><p></p><p>Conclusion: The weight of a sample size of 10 Nosler blem bullets is not as consistent as the bullets ran after the machine is calibrated. They are as precise in OAL, BTOL and diameter. The 190 Bergers are more precise in weight than the 140 RDF Nosler calibrated run. </p><p></p><p>We will be shooting these 140 RDF in identically chambered 6.5x47 barrels and I will take note of any variation in performance down range between the blems and the bests.</p></blockquote><p></p>
[QUOTE="PNWdude67, post: 2436639, member: 110615"] I also know Nosler folks, and your answer is spot on. My son works there. However, since I have 6000 140 RDF blems and 2000 firsts I decided to weigh and measure 10 of each and also 10 190 Berger LRHT that I had from a box that was sitting next to the scale. The dimensional measurements of all 3 bullets were equally precise. The weight was not. Here is the variance of a sample size of 10 bullets each: 190 LRHT: 190.22, ES 0.14 SD .056 95% CI ~.02% 99.999% CI ~.03% really really good 140 RDF: 140.34 ES .20 SD .071 95% CI ~.03% 99.999% CI ~.07% really good 140 RDF Blem: 140.39 ES .72 SD .337 95% CI ~.15% 99.999% CI ~.34% good Conclusion: The weight of a sample size of 10 Nosler blem bullets is not as consistent as the bullets ran after the machine is calibrated. They are as precise in OAL, BTOL and diameter. The 190 Bergers are more precise in weight than the 140 RDF Nosler calibrated run. We will be shooting these 140 RDF in identically chambered 6.5x47 barrels and I will take note of any variation in performance down range between the blems and the bests. [/QUOTE]
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What is going on with Nosler?
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