what neck for a 6mmx284

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by B Jordan, May 23, 2006.

  1. B Jordan

    B Jordan Well-Known Member

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    i am going to build a 6mmx284 and do not want to turn necks what neck size do i need?
    is there a difference in the brass i use? (lapua,norma or wiinchester)
    is there a differance between a shehane reamer and a regular one ?

    thanks,Brian
     
  2. winmagman

    winmagman Well-Known Member

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    Brian
    My Lapua 6.5-284 has a neck thickness of .015 so I would think you would want at least a .277 (.243+.030 [.015 on ea. side]+.004 clearance) neck to avoid having to turn them. But I'm just guesstimating here not certain.

    I don't know about other brass or the reamer difference.
     

  3. dakor

    dakor Well-Known Member

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    Just tell your smith you want a standard chamber. As for brass try Win or Lapua.
     
  4. 1doug

    1doug Well-Known Member

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    loaded brass measures .275 in lapua brass.

    d-a