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Thread: Headspace checks

  1. #11
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    Quote Originally Posted by thehammer69 View Post
    Field closing is more of an indication that your chamber is getting worn and a warning that you may need to pay more frequent attention as to how often you check to ensure the "no go" guage doesn't close.
    I believe you have the FIELD and NO-GO gauges mixed up.

    The NO/GO gauges are generally slightly less than the maximum chamber depth so if it closes on the NO-GO gauge you may still have some margin of safety. The field gauge is used to determine if the rifle is still safe to fire after it closes on the NO/GO gauge. If the bolt closes on a FIELD gauge the rifle should not be used.

    There is a line of thinking that once the rifle is assembled and the initial GO and NO-go checks are done the only gauge you need to use is the field gauge.
    "If I had asked people what they wanted, they would have said a faster horse." - Henry Ford

    “You are responsible for your actions, but the world doesn’t turn around you, so it’s important that you find something bigger than yourself to work for, a way for you to make a difference.” - Drew Dix, MOH VN '68

  2. #12
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    So practically, you’d need all three gauges if you build and actually shoot your firearm(s).

    At the same time, one would think that “the odds” favor not having to check.

  3. #13
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    I'm just curious why you would replace the colt barrel with a BA barrel? I've owned both and much prefer the colt..
    Did you turn it into an sbr or something?

    (Sorry to side track)

  4. #14
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    Quote Originally Posted by JediGuy View Post
    So practically, you’d need all three gauges if you build and actually shoot your firearm(s).

    Yes, I suppose that is one way to look at it. Actually, just two, if you are going to be what I would call 'prudent' and fix the rifle when it closes on the no go.

    At the same time, one would think that “the odds” favor not having to check.
    I believe that is also true, odds are things will be in spec if you are using new bolt and new barrel.

    I keep 'build sheets' on the rifles I put together to confirm things were checked.
    "If I had asked people what they wanted, they would have said a faster horse." - Henry Ford

    “You are responsible for your actions, but the world doesn’t turn around you, so it’s important that you find something bigger than yourself to work for, a way for you to make a difference.” - Drew Dix, MOH VN '68

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