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  1. #21
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    Ah! But you're now talking to civvies Peter! I don't s'pose that the MoD have been forced to get the troops to neck resize their own brass..............yet.

    I always feel bemused as well, at how the head space issue has become complicated over the years. I stick to the original Britishicon military specifications when headspacing rifles prior to proof. Specifically; the bolt should close over the .064 GO gauge, & not close over the .074 NO GO gauge.

    To quote a Slavik furry rodent in a well known UK TV ad.........'Seeemples!'
    Last edited by Roger Payne; 05-21-2017 at 10:00 AM.

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  4. #22
    Legacy Member Simon P's Avatar
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    For original barrels ive had no problem getting rifles through proof using the .064 GO gauge & the .074 NO GO gauge.

    London Proof House are now using CIP spec for newly manufactured barrels ie Lothar & Criterion, which I've had to have a CIP No Go gauge manufactured recently which is the Go Gauge +0.004"
    Regards Simon

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  7. #23
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    Yes, Brum Proof House is too, but I only submit original manufacture barrels on the rifles I take in, although my little stash is slowly running out. I may have to buy new barrels soon.......

    But the general point I was trying to make was KISS - keep it simple. If your rifle headspaces between .064 & .074 it's ok to shoot (well, at least it is from a headspace point of view).
    Last edited by Roger Payne; 05-22-2017 at 07:28 AM. Reason: typo

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    Clearly CIP know more about it all than Enfield do. But the problem Simon is that it's not CIP, Europe or the UKicon that seem to start the whole CHS palava going time after time. It all emanates from the US with these myriad gauge makers and specs and..........

    My friends P'17 rifle was rejected on CHS at proof so I loaned him a set of just re-calibrated CHS gauges, complete with calibration certificate. They showed that the rifle was perfect. But not for the proof house......... Nope, I don't understand it either!

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    Quote Originally Posted by Peter Laidlericon View Post
    I loaned him a set of just re-calibrated CHS gauges, complete with calibration certificate.
    Some people don't treat their gauges like the instrument they are, like they're gold. When they take a bash or abuse, they don't read correctly. Some don't know that. After all, "They're hardened, aren't they?" (They'll ask)
    Regards, Jim

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  13. #26
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    They're hardened allright! How right you are BAR!!!!! Just eject them onto the concrete floor and see how hard they are when they hit the floor and crack. Or when someone snaps the rim off by slamming the breech block or bolt over it without removing the extractor........

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    Strange as it seems but, I'm told .22 now is an issue at proof.....

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    Peter or others if I insert either the .064 or .074 gauge through the mag well up under the extractor as I close the bolt with the extractor in place then carefully eject the gauge I.E stopping the extractor flinging the gauge onto the deck by doing this as the gauge is being withdrawn I place my palm under the mag well and one finger on the gauge as it moves to the rear is that ok to run the check that way. Or does the extractor have to be removed from the bolt head regardless. TIA

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    a stoopit question

    CIP is the European equivilent of our SAAMI standard?

    several forums suggest the CIP standard is to a tighter tolerance than our SAAMI standard? Is this so?

    I'm looking to buy a chamber reamer. which standard would be the "better" specification/standard

    What does CIP stand for anyway?

  18. #30
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    C. I. P.

    Here.

    See also:
    Last edited by Bruce_in_Oz; 05-21-2017 at 10:24 PM.

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