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Rifles, Reloading, Optics, Equipment
Reloading
Making a datum line gauge
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<blockquote data-quote="Gregg C" data-source="post: 1387265" data-attributes="member: 103471"><p>Got a somewhat perplexing dilemma in that I need to know the datum line to base dimension of my big Wby cases, and have not had any success finding a gauge. Sooo, I got .420 gauge thingy from Hornady, thinking tht might be close enough to the shoulder , but I think it registers too close to the neck to really tell me what I want to know. The case drawing shows the diameter of the shoulder is .560 , which I think is the datum line, from what I understand . Spent cases from the rifle measure approximately .5625in. I thought I might drill the .420 gauge out to a larger size. Say .500. Or maybe closer, .5468. Comments invited, encouraged even. Thanks in advance,</p><p> Gregg</p></blockquote><p></p>
[QUOTE="Gregg C, post: 1387265, member: 103471"] Got a somewhat perplexing dilemma in that I need to know the datum line to base dimension of my big Wby cases, and have not had any success finding a gauge. Sooo, I got .420 gauge thingy from Hornady, thinking tht might be close enough to the shoulder , but I think it registers too close to the neck to really tell me what I want to know. The case drawing shows the diameter of the shoulder is .560 , which I think is the datum line, from what I understand . Spent cases from the rifle measure approximately .5625in. I thought I might drill the .420 gauge out to a larger size. Say .500. Or maybe closer, .5468. Comments invited, encouraged even. Thanks in advance, Gregg [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Making a datum line gauge
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