Question about neck wall thickness?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by JBT, Apr 25, 2003.

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  1. JBT

    JBT Member

    Feb 18, 2003
    Which is better to do ? Ream the neck or outside turn.
  2. Varmint Hunter

    Varmint Hunter Well-Known Member

    Dec 26, 2001
    Reaming a neck mearly removes material and does nothing to improve neck wall consistency. A careful neck turning will reduce neck thickness as it uniforms the neck walls all the way around.
    Neither process will improve concentricity but a turned neck that is fired in a properly cut chamber will give you a good start.
  3. dwm

    dwm Well-Known Member

    Feb 26, 2003
    I have asked this question on a couple of boards including

    So far no one has recommended reaming case necks.

    I have inside neck reamers.

    My best shooting cases to date started off being inside reamed before outside turning.

    I found that the inside of the case necks were not uniform at all.

    On fired cases, the reamer did not take off a lot of material, but it did engage.

    I outside neck turned after reaming them.

    The material that was removed might have been from the dies I was using since the expander ball was kind of hard to pull through.

    I don't use those dies any more. No more expander balls.

    Not sure if it was the infamous donut that I removed or not.

    The 100 - 200 yard benchrest guys didn't seem to like the question.

    They shoot tiny one hole groups without reaming the inside.

    Just wanted to share this because I have asked the question before myself.