Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

What is this Thing?

Discussion in 'Handloading and Reloading' started by saaman, Mar 14, 2012.

Thread Status:
Not open for further replies.
  1. saaman

    saaman Member

    Joined:
    May 29, 2004
    Messages:
    90
    Location:
    Waco Texas
    This came with some reloading gear but I don't know what it is or what it is used for.
    [​IMG]
     
  2. Tilos

    Tilos Member

    Joined:
    Jan 13, 2010
    Messages:
    667
    It is used to compare OAL of loaded rifle ammo using the correct size hole to contact the bullet at the ogive.
    Then measure over it to the base, primer end of the case.

    Find one at an online retailer like Midway and read the description or go to a major reloading mfg. site.

    here's one:

    http://www.midwayusa.com/product/746974/ptg-bullet-comparator-22-24-25-26-28-30-calibers

    Someone will be along to correct me soon...be patient.
    Tilos
     
    Last edited: Mar 14, 2012
  3. saaman

    saaman Member

    Joined:
    May 29, 2004
    Messages:
    90
    Location:
    Waco Texas
    Thanks very much Tilos--that gives me a name and function. Not sure how I would translate that measurement into adjusting my seating dies, but that seems to be the purpose.
     
  4. Old Dog Man

    Old Dog Man Member

    Joined:
    Jan 10, 2012
    Messages:
    346
    Location:
    Texas
    OAL guage

    Insert your losded round in the proper cal. hole, measure with calipers from cose head to other side of tool. Then measure the tool only across the opposing flats and subtract that from your shell reading. That gives you the OAL of that round. If you need to make it longer or shorter, you need to know how far it is from bolt face to rifling. Or you can check a factory round that works well in your rifle and duplicate that OAL. Al
     
  5. jinxer3006

    jinxer3006 Member

    Joined:
    Apr 30, 2008
    Messages:
    132
    That gives you the length to the ogive--NOT the overall length.
     
  6. Walkalong

    Walkalong Moderator

    Joined:
    Nov 20, 2006
    Messages:
    46,770
    Location:
    Alabama
  7. saaman

    saaman Member

    Joined:
    May 29, 2004
    Messages:
    90
    Location:
    Waco Texas
    Thanks everyone--now I understand how to use it. The Sinclair site has a video that explains it. This tool solves a problem I have often wondered about--differing ogives cause different points of contact with the seating nose and with the rifle chamber next to the rifling.
     
  8. kelbro

    kelbro Member

    Joined:
    Nov 11, 2007
    Messages:
    1,264
    Location:
    Desert Southwest
    The one that you have is more versatile than the Sinclair. You would have to buy both Sinclair models to get the calibers that yours has drilled.
     
Thread Status:
Not open for further replies.

Share This Page