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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Full Length or Neck Only; What's Best Resizing for Accuracy?
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<blockquote data-quote="bigngreen" data-source="post: 1846306" data-attributes="member: 13632"><p>The issue with being tight and looking for .0000 is it doesn't work over the long run, I experimented with this years ago thinking tight was the answer, only ran .0003 bullet clearance, turn necks with clearance that I barely sized anything, it would hold a bullet after firing even. It shot amazing but only some times, I had to sort bullet, sort brass then fire and mark cases and sort of any case that resulted in a flyer and it turned into a rabbit hole, pressures were exceptionally erratic, every time I fired a case the next time it changed a little. I took that exact same barrel and rebuilt the reamer to a good fit, .0008 bullet clearance, .004 on the neck and gave the body some room and actually sized cases. This made a whole new animal, gone was the being picky with spiky pressures, day to day was the same boring shooting without the manic OCD, when you build in some tolerances and quite forcing things it allows all the other components which have tolerances to play nice. I built rifles that absolutely hammered with one bullet, one lot and one brass now with a little bit of room you can tune the things to changes and your not screwed when a bullet comes in .0001 larger.</p></blockquote><p></p>
[QUOTE="bigngreen, post: 1846306, member: 13632"] The issue with being tight and looking for .0000 is it doesn't work over the long run, I experimented with this years ago thinking tight was the answer, only ran .0003 bullet clearance, turn necks with clearance that I barely sized anything, it would hold a bullet after firing even. It shot amazing but only some times, I had to sort bullet, sort brass then fire and mark cases and sort of any case that resulted in a flyer and it turned into a rabbit hole, pressures were exceptionally erratic, every time I fired a case the next time it changed a little. I took that exact same barrel and rebuilt the reamer to a good fit, .0008 bullet clearance, .004 on the neck and gave the body some room and actually sized cases. This made a whole new animal, gone was the being picky with spiky pressures, day to day was the same boring shooting without the manic OCD, when you build in some tolerances and quite forcing things it allows all the other components which have tolerances to play nice. I built rifles that absolutely hammered with one bullet, one lot and one brass now with a little bit of room you can tune the things to changes and your not screwed when a bullet comes in .0001 larger. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Full Length or Neck Only; What's Best Resizing for Accuracy?
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