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Rifles, Reloading, Optics, Equipment
Reloading
Find seating depth or powder charge first on VLD's?
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<blockquote data-quote="RustyRick" data-source="post: 909233" data-attributes="member: 69572"><p>I've just gotten back into reloading after some years off. Excited to see how much has changed. Especially in tools, and philosophy's. </p><p> </p><p>So I bought a Hornady Base to Ogive gage. And my micrometer cost me $88 probably 30 yrs ago so it should be a good one. </p><p> </p><p>Now to be the devils advocate. </p><p> </p><p>I find that individual bullets (projectiles) out of the box vary more in length than the seating depths talked about in this forum. I find you can measure the same loaded case and get massive differences in length. </p><p> </p><p>For example I measured 3 groups of 10 loaded cases with 3 different bullets after seating them. I found a STANDARD DEVIATION OF .04115 in one group of ten, .0948 and .0553 in the last group. </p><p> </p><p>I was shocked and left dumfounded. So I phoned one of the bullet manufactures and he freely admitted considerable difference between bullet length even with strict QC. </p><p> </p><p>So my conclusion is that a person is fooling himself some if he put too much stock into calculating seating depth.</p></blockquote><p></p>
[QUOTE="RustyRick, post: 909233, member: 69572"] I've just gotten back into reloading after some years off. Excited to see how much has changed. Especially in tools, and philosophy's. So I bought a Hornady Base to Ogive gage. And my micrometer cost me $88 probably 30 yrs ago so it should be a good one. Now to be the devils advocate. I find that individual bullets (projectiles) out of the box vary more in length than the seating depths talked about in this forum. I find you can measure the same loaded case and get massive differences in length. For example I measured 3 groups of 10 loaded cases with 3 different bullets after seating them. I found a STANDARD DEVIATION OF .04115 in one group of ten, .0948 and .0553 in the last group. I was shocked and left dumfounded. So I phoned one of the bullet manufactures and he freely admitted considerable difference between bullet length even with strict QC. So my conclusion is that a person is fooling himself some if he put too much stock into calculating seating depth. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Find seating depth or powder charge first on VLD's?
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