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  1. #1
    Woodsmith with "Mod-like" Powers
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    Default How much runout is too much?

    I borrowed a Sinclair runout gage and checked some .260 ammo I loaded. I'm seeing TIR of 0.001" up to the occasional 0.007". Average looks to be 0.004".

    Obviously, zero is good. What constitutes bad?
    "It takes considerable knowledge just to realize the extent of your ignorance"

    Thomas Sowell

    www.timkulincabinetry.com

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  2. #2
    Rabid Anti-Dentite Hoser's Avatar
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    Aug 2003
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    Default

    More than 3 goes in the practice pile.
    You know I like my coffee sweet in the morning
    and I'm crazy about my tea at night

  3. #3
    Woodsmith with "Mod-like" Powers
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    Default

    Did you do some testing to come up with that number?
    "It takes considerable knowledge just to realize the extent of your ignorance"

    Thomas Sowell

    www.timkulincabinetry.com

    See our reviews below:

    http://www.thumbtack.com/Tim-Kulin-C...service/788419

  4. #4
    Rabid Anti-Dentite Hoser's Avatar
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    Default

    Nope. Just a number I pulled out.
    You know I like my coffee sweet in the morning
    and I'm crazy about my tea at night

  5. #5
    RIP - IN MEMORIAM - You will be missed
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    May 2011
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    Default

    I know the Hornady tool basically measuring off the base instead of the side isn't going to be as accurate as the Sinclair, but you can correct runout with the Hornady tool. The point is to get them all the same. If I get more than a couple thousandths, I'll give it a bump. If it's 6 or 7 off, I'll just pull it and try again later. You will dent a thin jacketed target bullet trying to push too much.

    Square up your dies (put washers on your shell plate, raise the ram so it contacts the die and takes the slop out, then lock it down) and you'll rarely have a problem. I like and use the o-ring as well.

    http://www.accurateshooter.com/techn...educe-run-out/

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