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Rifles, Reloading, Optics, Equipment
Reloading
Why can't i reload exact cartridges?
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<blockquote data-quote="Bob Wright" data-source="post: 1574688" data-attributes="member: 104363"><p>Here are the minimum three culprits of variation </p><p>A 7mm RM mag bullet marked for reference.</p><p>Notice where the seater tool hits on the bullet (RCBS seater)</p><p>Notice where the Hornady .28 gage hits way up closer to the bearing diameter.</p><p>All along the ogive there is variation in its form that is acceptable to quality control at Berger. We really only get a "reference measurement" that applies to our cartridge using our tools. It's important but not perfect for repeatability.</p><p>This contributes to bullet seating errors among a ton of everything else....</p></blockquote><p></p>
[QUOTE="Bob Wright, post: 1574688, member: 104363"] Here are the minimum three culprits of variation A 7mm RM mag bullet marked for reference. Notice where the seater tool hits on the bullet (RCBS seater) Notice where the Hornady .28 gage hits way up closer to the bearing diameter. All along the ogive there is variation in its form that is acceptable to quality control at Berger. We really only get a "reference measurement" that applies to our cartridge using our tools. It's important but not perfect for repeatability. This contributes to bullet seating errors among a ton of everything else.... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Why can't i reload exact cartridges?
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