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Thread: Is it 'Cold Bore' or 'Foul Bore' ?

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  1. 08-08-2012, 12:09 AM #1
    7mmsaum
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    R93 would use HBN.
    Hexagonal boron nitride
    A big fast bullet beats a little fast bullet every time
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  2. 08-08-2012, 07:35 AM #2
    R93
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    Quote Originally Posted by 7mmsaum View Post
    R93 would use HBN.
    Hexagonal boron nitride
    Yup, HBN. Moly rooted a couple black barrels I had. As Tussock pointed out, mix it with moisture and you get a corrosion factory. They both still shot but looked like an umpa lumpa mine site.

    HBN is not as slippery as moly but it can never cause any bore problems. Cleaning is a breeze as well, I have yet to have a blue patch when using a copper solvent.
    Last edited by R93; 08-08-2012 at 07:49 AM.
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  3. 09-08-2012, 05:36 PM #3
    el borracho
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    whats your decrease in speed with HB -must be slightly different even to moly
    Tweed or not to Tweed that is the question
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  4. 09-08-2012, 10:24 PM #4
    R93
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    Quote Originally Posted by el borracho View Post
    whats your decrease in speed with HB -must be slightly different even to moly
    Its not as slippery for want of a better word. I dont lose much at all as I use less powder to get the same speeds as moly.
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