Comparator question

Discussion in 'Handloading and Reloading' started by j2crows, Mar 31, 2011.

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  1. j2crows

    j2crows Member

    Feb 27, 2011
    New Mexico
    I have a question on getting correct measurements from the bullet ogive of a loaded round. While attempting to get a, "good" reading are you supposed to take the reading as soon as the bottom of the case touches the jaw of the caliper or do you kinda have to, "snug" it up a bit and then take a reading?? Thanks
  2. rcmodel

    rcmodel Member in memoriam

    Sep 17, 2007
    Eastern KS
    Use the same "snugness" you used it when you zero'd it.

    Whatever force that was is the force used to zero it, so the same force should be used when you measure things later.

    A good way to practice and get the feel is to zero it, then slide it open and closed and see if you can get the same zero reading every single time.

    Last edited: Mar 31, 2011
  3. jcwit

    jcwit member

    Oct 19, 2007
    Great state of Indiana
    When learning I was taught to measure paper thickness.

    1. One can measure the thickness and get the correct reading.
    2. One can compress the paper with the calibers or mike and get a false reading.

    Won't take long to get the feel.
  4. fguffey

    fguffey member

    Aug 28, 2008
    When measuring with a micrometer? And then it becomes an issue with feel. Then it is about wobble, wiggle and slack and pressure? I use standards, the companion tool to the press, the feeler gage is a standard, most micrometers come with standards, the feel when measuring with a micrometer can be different when using a different micrometer so I check my micrometers for accuracy and feel often.

    F. Guffey
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