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  1. #1
    Contributing Member CINDERS's Avatar
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    Keyholing

    I have a reasonably old reloading book and they briefly touch on a possible cause of keyholing where a bullets rotational forces are such that it stands like a top over shorter distances.
    Anyway have a read of the article its about halfway down the page but read the whole blurb its not bad.
    I also included who the author was so the plausible cause for this explanation is coming from a person with some authority on the subject matter. It is a 1958 Ed.
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    Legacy Member Paul S.'s Avatar
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    Then too, there is - as was the case with one 1917 Lithgowicon I own - that the bore is so badly corroded that the bullet is not stabilized in the slightest before it leaves the barrel.

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    Legacy Member Merle's Avatar
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    I have two rifle that will not stabilize their bullets. One is an Italianicon Carcano carbine & the other is an Egyptian Hakim. Both of them are so corroded as to have very little rifling left.

    Bullets that are not gripped & spun by the rifling will not stabilize, no matter what you do.

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    Advisory Panel browningautorifle's Avatar
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    Quote Originally Posted by Merle View Post
    very little rifling left.
    Quote Originally Posted by Paul S. View Post
    the bore is so badly corroded
    Right guys, but we know that part. It's the high pressure loads he speaks of that are interesting. Many are trying far too hard to achieve a military velocity and instead should likely use the load listed as most potentially accurate...I think...
    Regards, Jim

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    Contributing Member CINDERS's Avatar
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    Thread Starter
    Been down the HV load path spent ages & $'s for naught back off a few grains and Viol la it came together besides just have to play to find the nodes.

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