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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need new dies.....
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<blockquote data-quote="BountyHunter" data-source="post: 33887" data-attributes="member: 12"><p>sakofan</p><p></p><p>You can convert your forester dies to bushing for $35. Jim Carstenson at JLC Precison in Precision Shooting or advertises on BR central. All of mine are done that way and works great. Get the tritium nitride bushings.</p><p></p><p>If you are changing bushings in the middle of reloading a batch of ammo you are creating more problems than you are eliminating. If the wall thickness varies that much. They need to be neck turned to clean them up. Set up of bushings will vary how far up and down the neck you size, which will effect neck tension. Will take you 2-3 pieces of brass to get them adjusted to same heigth. You have zero idea if that is giving you the same tension unless you are using inline dies with arbor press and dial indicator. No other way to tell. Have to have some measurement of force or just SWAG.</p><p></p><p>neck tension will start to come from work hardening with firing and the only way to stop that is virgin brass every 2-3 times or annealing the necks.</p><p></p><p>The expandiron takes you back to nominal caliber with zero neck tension. you need to resize the neck for neck tension.</p><p></p><p>You will get .001 spring back and normally need .002-.003 so you will need a bushing of .004 smaller than loaded diameter. </p><p></p><p>Unless you have a custom barrel and chamber doubt many factory guns shoot well enough to tell you any neck tension variations anyway and they all have oversize chambers to start.</p><p></p><p>BH</p></blockquote><p></p>
[QUOTE="BountyHunter, post: 33887, member: 12"] sakofan You can convert your forester dies to bushing for $35. Jim Carstenson at JLC Precison in Precision Shooting or advertises on BR central. All of mine are done that way and works great. Get the tritium nitride bushings. If you are changing bushings in the middle of reloading a batch of ammo you are creating more problems than you are eliminating. If the wall thickness varies that much. They need to be neck turned to clean them up. Set up of bushings will vary how far up and down the neck you size, which will effect neck tension. Will take you 2-3 pieces of brass to get them adjusted to same heigth. You have zero idea if that is giving you the same tension unless you are using inline dies with arbor press and dial indicator. No other way to tell. Have to have some measurement of force or just SWAG. neck tension will start to come from work hardening with firing and the only way to stop that is virgin brass every 2-3 times or annealing the necks. The expandiron takes you back to nominal caliber with zero neck tension. you need to resize the neck for neck tension. You will get .001 spring back and normally need .002-.003 so you will need a bushing of .004 smaller than loaded diameter. Unless you have a custom barrel and chamber doubt many factory guns shoot well enough to tell you any neck tension variations anyway and they all have oversize chambers to start. BH [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need new dies.....
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