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Thread: Moly coated bullets

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  1. #1
    Join Date
    Jan 2008
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    Quote Originally Posted by stillair1 View Post
    Perhaps HBN would be a modern alternative.

    https://www.youtube.com/watch?v=rDHYzGg7Ucc
    I thought HBN would be a good idea some years ago so bought 4oz of the stuff on a group buy, it did not make a jot of difference.

    TB.

  2. #2
    Join Date
    Jul 2015
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    Hastings
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    optima silk,

    I used moly coated Lapua Scenar 0.308 155s for fifteen (15) years in my custom BAT rifle.

    I had the luck to buy 1000 of them for £12/100 in the year 2000

    What I can tell you :

    1) The moly coating did not increase accuracy compared with standard, un-coated Lapua Scenar 155s, nor was the ballistic performance increased. Both grouped in 0.15" to 0.25" (10 shots) at 100 m.
    2) For a custom, finish lapped barrel like I had (Krieger cut rifled, 0.298" internal dimensions), the moly coats really did not make much of a difference to the amount of cleaning needed.
    3) Despite the moly, small amounts of copper were still deposited, along with moly & powder residue.
    4) Cleaning - I used IOSSO bore paste to clean my bores, and it took the same amount of effort to clean after the moly coats, as it did for the un-coated. Two short stroke passes with IOSSO Bore Patse on a cotton patch wrapped around a 7mm bronze brush, a check with Butches Boreshine for residual copper, and that was it.

    It seems that moly, as has been said, was a fad that has now passed.

    A chappie from Sierra bullets (Mr. Kevin Thomas) did a test for Precision Shooting magazine, and found that moly did not increase barrel life, did not increase accuracy, did not alter the ballistic performace, and did not materially decrease the cleaning requirements.

    It seems the only thing that was definitive about moly, was that you had to increase the powder charge to get the velocity back up to that of the un-coated bullets - this seemed to be in the order of 0.5 to 1 grain more.

    I never suffered from the other moly characteristic - the first round or two after cleaning not being in the group.

    So, don't bother about moly

    If you do, invest in some IOSSO Bore Paste !

    Have fun & a good Sunday,

    Best regards

    Russ

  3. #3
    Join Date
    Feb 2008
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    Quote Originally Posted by PhatMan View Post
    So, don't bother about moly If you do, invest in some IOSSO Bore Paste !

    Have fun & a good Sunday,

    Best regards

    Russ
    THE definitive answer to the moly question - it really should be made a sticky.

    tac

  4. #4
    Join Date
    May 2010
    Location
    dewsbury
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    Thanks for all your feedback it really is appreciated

  5. #5
    Parabuteo is offline My Chrony has bought it a couple of times...
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    Quote Originally Posted by Treebone View Post
    I thought HBN would be a good idea some years ago so bought 4oz of the stuff on a group buy, it did not make a jot of difference.

    TB.
    I have known an F Class shooter who used that stuff. It caused a build up in his barrel and buggered the accuracy until he finally managed to clean it out.

    Good quality copper bullets have been about for years.....you have to wonder why

    You dont see Molly about much now
    I'm a maggot in another life you know

  6. #6
    Join Date
    Apr 2002
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    Rayleigh
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    1,194
    Regarding case lube has anyone tried GT89 or WD40?
    One Shot = One Kill

  7. #7
    Join Date
    Jun 2005
    Location
    leeds, west yorkshire
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    12,967
    Quote Originally Posted by aquarius11 View Post
    Regarding case lube has anyone tried GT89 or WD40?
    best to stick to tried and tested lube.....imperial wax

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