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Rifles, Reloading, Optics, Equipment
Reloading
BERGER BEWARE!
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<blockquote data-quote="Doug Herold" data-source="post: 1913034" data-attributes="member: 102658"><p>Whenever I buy components, i.e., bullets, I always buy them in same lot #'s of 500, 1000, or 1500. The attached photos show the reason why I do this.</p><p> Yesterday, I ran out of my supply of the "red label" batch of Berger's and started on the standard "yellow box" of bullets. Always, I check the case head to Ogive measurement to get the cartridge overall length ( C.O.A.L.). I discovered that I was getting @ 0.015 difference in COAL . Additionally, I knew that my brass was not the problem ( 3rd. firing, all trimmed to exact length). The issue had to be in the bullets... and I had JUST switched lot #'s. If I had been setting the "jump" at 0.005", that new round would have put me jammed into the lands @ 0.010". At worst scenario: potentially dangerous pressure, at best: ruined accuracy.</p><p> Just posting this to show members what can happen and why OCD is not necessarily a bad disease to have when rolling your own.[ATTACH=full]196263[/ATTACH][ATTACH=full]196262[/ATTACH][ATTACH=full]196264[/ATTACH][ATTACH=full]196265[/ATTACH]</p></blockquote><p></p>
[QUOTE="Doug Herold, post: 1913034, member: 102658"] Whenever I buy components, i.e., bullets, I always buy them in same lot #’s of 500, 1000, or 1500. The attached photos show the reason why I do this. Yesterday, I ran out of my supply of the “red label” batch of Berger’s and started on the standard “yellow box” of bullets. Always, I check the case head to Ogive measurement to get the cartridge overall length ( C.O.A.L.). I discovered that I was getting @ 0.015 difference in COAL . Additionally, I knew that my brass was not the problem ( 3rd. firing, all trimmed to exact length). The issue had to be in the bullets... and I had JUST switched lot #’s. If I had been setting the “jump” at 0.005”, that new round would have put me jammed into the lands @ 0.010”. At worst scenario: potentially dangerous pressure, at best: ruined accuracy. Just posting this to show members what can happen and why OCD is not necessarily a bad disease to have when rolling your own.[ATTACH type="full" alt="A6A4D44B-497D-403A-90F9-4037C1EC3893.jpeg"]196263[/ATTACH][ATTACH type="full" alt="005FDC15-4202-434D-9912-C4CCCA2EBDEF.jpeg"]196262[/ATTACH][ATTACH type="full" alt="1883A1CB-107A-481A-BF59-E043C6CA1514.jpeg"]196264[/ATTACH][ATTACH type="full" alt="6C06ECC1-780F-4AD0-A441-41814F925BD8.jpeg"]196265[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
BERGER BEWARE!
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