BR Lower Bullet Weight(length) Limit with .104 Freebore

Discussion in '6BR, 6BR Improved & Wildcats' started by JD9000, Sep 15, 2018.

  1. JD9000

    JD9000

    Joined:
    Jan 4, 2017
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    Hello,

    I am wondering what the lightest bullet is that will work well and won't prematurely wear out the throat of a BR with .104 freebore.

    TIA
     
  2. LA50SHOOTER

    LA50SHOOTER Gold $$ Contributor

    Joined:
    Jan 30, 2010
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    I like the 80 & 88 gr. Berger flat base varmint bullets in my 6 BR when I'm not shooting 105's - My FB is very close to yours and the 80 & 88 gr. Bergers shoot well and there's no problem getting them up close or into the lands.
     
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  3. mikeinct

    mikeinct

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    Sep 21, 2005
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    Second on the 88 gr Berger flat base ...even in a 1-8 twist those bullets shoot....Mike in Ct
     
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  4. gasph

    gasph Silver $$ Contributor

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    Oct 28, 2009
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    What powder and charge is working good with the 88 bergers in an 8 twist BRA? Are you using a slight jamb?
     
  5. mikeinct

    mikeinct

    Joined:
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    Little guns I use Varget...In the 243W I use IMR4064 as hot as the gun will take it...Note: IMR4064 it really varies gun to gun for top speed & accuracy...Be careful w both those med speed powders...Mike in Ct
     
  6. LA50SHOOTER

    LA50SHOOTER Gold $$ Contributor

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    In a "Standard" 6 BR, I ran 32.0 gr. of Varget jammed the 88 gr. Berger FB 0.005 in the lands and it shot very well and ran at around 3200 fps out of a 29" BBL. (Lapua Blue-Box Brass & a CCI 450 primer)
     
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  7. expiper

    expiper

    Joined:
    Nov 23, 2004
    Messages:
    2,154
    when using .080-.100 FB,,,,use Watson-Fowler style bullets with flat base and long bearing surface and LT-32,,,Roger
     

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