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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
primer pocket blow out.???
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<blockquote data-quote="Pdvdh" data-source="post: 1398670" data-attributes="member: 4191"><p>There's not 1 in 1000 reloaders that collect and document case web diameters pre- and post-initial case firings of brass during load workup, as I did in the instance of my blown primer. This data allowed me to confidently conclude - after the fact - that a Hornady case with 3.2gr less powder, producing 90+ fps less MV at a lesser pressure, expanded the case head more - resulting in a blown primer, while the Hornady case with 3.2gr more powder and 90+ fps additional MV (and more associated pressure) expanded the case web measurably less - such that this case held its primer. Both Hornady cases were from the same Lot of manufacture. Really leads to only one conclusion: The Hornady case heads had different, inconsistent case head strength.</p><p></p><p>One more observation. Hornady is currently the only manufacturer of 375 Ruger cartridge cases, to the best of my knowledge. Nosler used to market 375 Ruger casings for reloaders under their Nosler case head stamping. The Nosler brass had to be coming from Hornady, because no other company was manufacturing the 375 Ruger cartridge cases, and Nosler wasn't manufacturing it themselves at that time - 5yrs ago. Still don't think Nosler is manufacturing cartridge cases in their own plant.</p><p></p><p>Low and behold, Nosler ceased to offer 375 Ruger brass on their web site, and hasn't for over one year now, based on my research and understanding. Why might that be? Is this corroborating evidence of inconsistent strength/quality of the Hornady brass? I certainly wouldn't risk the reputation of my brA$$ if I became aware of problems with cartridge case quality being produced by my supplier, which was then dressed up for sale by my company under my company Brand. </p><p></p><p><u>Bob</u>, here's the link to my Thread covering my blown primer incident. A long read, but you might have the interest:</p><p><a href="https://www.longrangehunting.com/threads/blew-a-primer-_-analysis.197020/" target="_blank">https://www.longrangehunting.com/threads/blew-a-primer-_-analysis.197020/</a></p></blockquote><p></p>
[QUOTE="Pdvdh, post: 1398670, member: 4191"] There's not 1 in 1000 reloaders that collect and document case web diameters pre- and post-initial case firings of brass during load workup, as I did in the instance of my blown primer. This data allowed me to confidently conclude - after the fact - that a Hornady case with 3.2gr less powder, producing 90+ fps less MV at a lesser pressure, expanded the case head more - resulting in a blown primer, while the Hornady case with 3.2gr more powder and 90+ fps additional MV (and more associated pressure) expanded the case web measurably less - such that this case held its primer. Both Hornady cases were from the same Lot of manufacture. Really leads to only one conclusion: The Hornady case heads had different, inconsistent case head strength. One more observation. Hornady is currently the only manufacturer of 375 Ruger cartridge cases, to the best of my knowledge. Nosler used to market 375 Ruger casings for reloaders under their Nosler case head stamping. The Nosler brass had to be coming from Hornady, because no other company was manufacturing the 375 Ruger cartridge cases, and Nosler wasn't manufacturing it themselves at that time - 5yrs ago. Still don't think Nosler is manufacturing cartridge cases in their own plant. Low and behold, Nosler ceased to offer 375 Ruger brass on their web site, and hasn't for over one year now, based on my research and understanding. Why might that be? Is this corroborating evidence of inconsistent strength/quality of the Hornady brass? I certainly wouldn't risk the reputation of my brA$$ if I became aware of problems with cartridge case quality being produced by my supplier, which was then dressed up for sale by my company under my company Brand. [U]Bob[/U], here's the link to my Thread covering my blown primer incident. A long read, but you might have the interest: [URL]https://www.longrangehunting.com/threads/blew-a-primer-_-analysis.197020/[/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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primer pocket blow out.???
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