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Rifles, Reloading, Optics, Equipment
Reloading
weighing bullets
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<blockquote data-quote="Bart B" data-source="post: 107627" data-attributes="member: 5302"><p>[ QUOTE ]</p><p>BartB, since jackets are slightly tapered on the inside, how does "about 3/8" inside the jacket" provide a repeatable basis for comparison? </p><p></p><p>[/ QUOTE ]There was a fixed flange about 3/8ths of an inch back from the ball's maximum diameter point. Jacket mouths stopped at that point so the same place back from the mouth on all the jackets would be measured. As long as that flange stayed at the same place relative to the ball, the same point on the jacket would be measured. The exact distance didn't matter; .375, .362, or exactly one centimeter (0.039369458748681123131919182375081-inch); repeatability was very good indeed.</p></blockquote><p></p>
[QUOTE="Bart B, post: 107627, member: 5302"] [ QUOTE ] BartB, since jackets are slightly tapered on the inside, how does "about 3/8" inside the jacket" provide a repeatable basis for comparison? [/ QUOTE ]There was a fixed flange about 3/8ths of an inch back from the ball's maximum diameter point. Jacket mouths stopped at that point so the same place back from the mouth on all the jackets would be measured. As long as that flange stayed at the same place relative to the ball, the same point on the jacket would be measured. The exact distance didn't matter; .375, .362, or exactly one centimeter (0.039369458748681123131919182375081-inch); repeatability was very good indeed. [/QUOTE]
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weighing bullets
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