Necking 30-06 Norma to 25

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by MOA, Jun 17, 2004.

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  1. MOA

    MOA Well-Known Member

    Nov 10, 2001
    I just got my new brass and had a few questions. Are there any special steps I need to take when necking--this is my first time. I already ran it through the FL sizer and everyting went well. The brass OAL is still in speck. Should I trim it after I fire the brass and neck size it or trim it now. Anything else I'm forgetting? Rifle is a Sendero.
  2. orwapitihunter

    orwapitihunter Well-Known Member

    Jan 4, 2004
    Look at your neck thickness. When you neck down the neck thickness increases. The brass should'nt be too tight in the chamber to release the bullet. If you have a fired case from your chamber measure the outside of the neck and compare to a new case with a bullet seated in it. The fired case should be a thousandth or two bigger than the new case/bullet combo. If the new case/bullet is bigger you will have to reduce neck wall thickness by outside turning or inside reaming.