Concentricity Gauges- Who?

Discussion in 'Reloading Forum (All Calibers)' started by SealTeam4, Nov 5, 2019.

  1. Clark

    Clark

    Joined:
    Nov 1, 2005
    Messages:
    416
    Further modify concentricity gauge 20190916_065843.jpg 25 krag ack in concentricity gauge 20190916_093259.jpg

    I have had a Sinclair concentricity gauge for the better part of 20 years. I keep modifying it b y milling or grinding more material out of the way.
    Bullet tilt reduced.jpg

    The NRA and AA Abbatto did work on concentricity in 1960.
     
  2. Matt in Virginia

    Matt in Virginia

    Joined:
    Aug 17, 2013
    Messages:
    261
    FWIW,
    I use an Accuracy One Fixture with a Mitutoyo Indicator. I've found it to be more versatile than my old Sinclair.

    About the only time I use it, aside from spot checking, is setting up/tuning a die.

    Regards, Matt.
     
  3. SealTeam4

    SealTeam4 Silver $$ Contributor

    Joined:
    Apr 23, 2016
    Messages:
    216
    I just picked up a Sinclair gauge in the classified section. What the heck I figured. I have some of my “match” ammo loaded up. I’m interested in seeing how much run out I have.

    Joe S
     
  4. Joe R

    Joe R Silver $$ Contributor

    Joined:
    Feb 4, 2013
    Messages:
    1,897
    I shoot F-Class, I have this one



    but don't use much anymore because now I know what I'm doing. But its still a good tool to have when checking die setup and new bushings.

    Joe
     

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