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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
The Juenke I.C.C.
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<blockquote data-quote="Brent" data-source="post: 27382" data-attributes="member: 99"><p>BH,</p><p></p><p>The manual has the info on the cases, pretty interesting read too, you want me to send you the pages related to cases or the whole manual, let me know. I think the manual is well written and spells things out really well for a guy that doesn't even comprehend what's setting in front of him. Once you read them, it all becomes all too simple. I explained and showed my Dad how to use it in less than two or three minutes. </p><p></p><p>Here's some thoughts and data for some bullets I tested that I sent to Len in an email, I thought I already posted it here too... whoops!! <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p></p><p>More later, but so far the 200gr Accubonds all tested under 9 DU's on the shank, half were under 4 DU's, the other half were 8 DU.... not bad, I thought. The 178 A-Max's I checked were in the same range too. All 10 .338 300gr SMK's I checked were all less than 3 DU's.</p><p> </p><p>I've made a couple observations so far; A couple things can cause higher DU readings than it really is because of the tip or base length variations can cause the bullet to move left or right on the balls varying the distance to the detector head if it is not level, as with testing boattails or ogives. If it was not distance sensitive, this would not matter but, it is and is something to consider. </p><p> </p><p>I thought of making an vertically adjustable stop that fastened to the originals lock-down screw that would center on the bullet bases axis to elliminate it from riding the stop on the heal of the boattail, this would keep the heal irregularities from influencing the distance to the detector, as it should remain stable from lft to right. </p><p> </p><p>With the bullet tip to the left against the stop and setting at quite an angle to test ogives, I can see no way to correct for variations in irregular tip length like you get with the SMK bullets. </p><p> </p><p>So many ways to sort them all, a guy might end up with many, many DU batches in just one box of a hundred.</p></blockquote><p></p>
[QUOTE="Brent, post: 27382, member: 99"] BH, The manual has the info on the cases, pretty interesting read too, you want me to send you the pages related to cases or the whole manual, let me know. I think the manual is well written and spells things out really well for a guy that doesn't even comprehend what's setting in front of him. Once you read them, it all becomes all too simple. I explained and showed my Dad how to use it in less than two or three minutes. Here's some thoughts and data for some bullets I tested that I sent to Len in an email, I thought I already posted it here too... whoops!! [img]images/icons/smile.gif[/img] More later, but so far the 200gr Accubonds all tested under 9 DU's on the shank, half were under 4 DU's, the other half were 8 DU.... not bad, I thought. The 178 A-Max's I checked were in the same range too. All 10 .338 300gr SMK's I checked were all less than 3 DU's. I've made a couple observations so far; A couple things can cause higher DU readings than it really is because of the tip or base length variations can cause the bullet to move left or right on the balls varying the distance to the detector head if it is not level, as with testing boattails or ogives. If it was not distance sensitive, this would not matter but, it is and is something to consider. I thought of making an vertically adjustable stop that fastened to the originals lock-down screw that would center on the bullet bases axis to elliminate it from riding the stop on the heal of the boattail, this would keep the heal irregularities from influencing the distance to the detector, as it should remain stable from lft to right. With the bullet tip to the left against the stop and setting at quite an angle to test ogives, I can see no way to correct for variations in irregular tip length like you get with the SMK bullets. So many ways to sort them all, a guy might end up with many, many DU batches in just one box of a hundred. [/QUOTE]
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