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Thread: BC help

  1. 22-06-2016, 08:38 AM #1
    wsm junkie
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    BC help

    Hey guys, does anyone know the G7 bc for the Sierra 7mm 160gr TMK? Can find all the other TMK's but not the 7mm.
    Cheers
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  3. 22-06-2016, 08:41 AM #2
    7mmsaum
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    Am guessing at .302

    Will have a look
    A big fast bullet beats a little fast bullet every time
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  4. 22-06-2016, 08:42 AM #3
    7mmsaum
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    G1 easy to find

    A big fast bullet beats a little fast bullet every time
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  5. 22-06-2016, 08:48 AM #4
    Gibo
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    Quote Originally Posted by 7mmsaum View Post
    G1 easy to find

    Sierra don't list G7 so will need to be from another source. Litz tested some but not the 160 .284
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  6. 22-06-2016, 08:50 AM #5
    7mmsaum
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    Looks like no real data around for the 7 mm 160g TMK until Brian Litz tests some

    I would shoot some with a confirmed zero and velocity using a G7 of .302

    Adjust if necessary

    You will end up within one decimal point of Brians findings.
    A big fast bullet beats a little fast bullet every time
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  7. 22-06-2016, 08:51 AM #6
    Gibo
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    Quote Originally Posted by 7mmsaum View Post
    Looks like no real data around for the 7 mm 160g TMK until Brian Litz tests some

    I would shoot some with a confirmed zero and velocity using a G7 of .302

    Adjust if necessary

    You will end up within one decimal point of Brians findings.
    So .2 or .4?
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  8. 22-06-2016, 08:57 AM #7
    wsm junkie
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    Cheers guys, will give that a whirl
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