Neck Turning Questions

Discussion in 'Reloading' started by barnesuser28, Mar 16, 2012.

  1. barnesuser28

    barnesuser28 Well-Known Member

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    I have a redding type s neck sizer for my 338 Lapua and i plan on buying a neck turning tool and i was wondering if i would need a smaller bushing to get the same neck tension that i have now
    gun)
     
  2. Broz

    Broz Well-Known Member

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    The answer is yes.

    Why are you thinking of doing this? Are you using Lapua brass?

    Jeff
     

  3. barnesuser28

    barnesuser28 Well-Known Member

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    I am using Lapua brass i just want to squeeze out every last bit of accuracy
     
  4. Broz

    Broz Well-Known Member

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    I suggest you try doing a few cases first and comparing the accuracy difference in non truned necks. Unless your rifle has a tight neck chamber it might not be worth the time and it could go the negative way in a loose neck chamber.

    Jeff
     
  5. barnesuser28

    barnesuser28 Well-Known Member

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    i just want to turn off about .0005 on each side so .001 total just to help the bullet release evenly and consistantly.
     
  6. sp6x6

    sp6x6 Well-Known Member

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    Check your rounds for run out, and if they are good, mine are within .002, then you are probably getting no benefit. If you have a chamber w/tight neck that is a different deal.
     
  7. barnesuser28

    barnesuser28 Well-Known Member

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    I did check the run-out and some were at .005
     
  8. sp6x6

    sp6x6 Well-Known Member

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    Check your fired brass first, then sized, then seated bullet with concentricty, to locate problem, what seater?
     
  9. barnesuser28

    barnesuser28 Well-Known Member

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    I measured the necks of a loaded round for runout and there was a variance of .005 while the actual bullet runout was no more than .003. I am using a redding micrometer competition seating die
     
  10. sp6x6

    sp6x6 Well-Known Member

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    That is interesting, I usually have opposite,small # in neck and worse on bullet, the seater is good one.
     
  11. barnesuser28

    barnesuser28 Well-Known Member

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    this is the only cartridge we have Lapua brass for so i figured i would get the best dies that i can afford