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Rifles, Reloading, Optics, Equipment
Reloading
Projectile comparison using ICC
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<blockquote data-quote="BountyHunter" data-source="post: 132828" data-attributes="member: 12"><p>Yes, that has been done time and time again. That is why you have many of the top guys using the Juenkes. Most will sort to 3 deviation units. </p><p></p><p>Each machine is slightly different. I keep a round or case for each caliber and bullet in small tubes their inital DU markings on them. That way it is easy to re zero the machine to that bullet and readings.</p><p></p><p>You will find that many competitors number each case and sort by DU. If you are firing at a range with pits, the pit crew marks on a plotting sheet the location of each round. So it is relatively easy to see which case threw a round out. That is how we learned to use the Juenke for cases and I have watched the same case "throw" a round out of the group three times in a row before it was discarded.</p><p></p><p>The Hoover family in PA sorts cases by chrono readings and has won more matches that anyone else remotely being close.</p><p></p><p>Most will anneal cases every 2-3 firings, seat with arbor presses by "feel" or with a dial indicator for pressure on top. They always check runout and only .001 or less will make a match round. </p><p></p><p>Anyone can fire a tight group once in a blue moon and post about their gun shooting in the .2s. However, most cannot do it back to back. Consistency of all variables is the key.</p><p></p><p>I do not use the Juenke on BIB bullets or Clinch Rivers, but I do sort by ogive just for comfort sake, even though they are normally max variance of .003 or less.</p><p></p><p>BH</p></blockquote><p></p>
[QUOTE="BountyHunter, post: 132828, member: 12"] Yes, that has been done time and time again. That is why you have many of the top guys using the Juenkes. Most will sort to 3 deviation units. Each machine is slightly different. I keep a round or case for each caliber and bullet in small tubes their inital DU markings on them. That way it is easy to re zero the machine to that bullet and readings. You will find that many competitors number each case and sort by DU. If you are firing at a range with pits, the pit crew marks on a plotting sheet the location of each round. So it is relatively easy to see which case threw a round out. That is how we learned to use the Juenke for cases and I have watched the same case "throw" a round out of the group three times in a row before it was discarded. The Hoover family in PA sorts cases by chrono readings and has won more matches that anyone else remotely being close. Most will anneal cases every 2-3 firings, seat with arbor presses by "feel" or with a dial indicator for pressure on top. They always check runout and only .001 or less will make a match round. Anyone can fire a tight group once in a blue moon and post about their gun shooting in the .2s. However, most cannot do it back to back. Consistency of all variables is the key. I do not use the Juenke on BIB bullets or Clinch Rivers, but I do sort by ogive just for comfort sake, even though they are normally max variance of .003 or less. BH [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Projectile comparison using ICC
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