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Best bullet weight for a 45-70 w/20" twist?

Discussion in 'Handloading and Reloading' started by Fatelvis, Mar 15, 2008.

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  1. Fatelvis

    Fatelvis Member

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    Dec 25, 2002
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    I just bought a Browning 1885 that has 1:20" twist, and was wondering, what would the max bullet weight be for this twist barrel? I know the BPCR version has a 1:18" twist, but was wondering if the little slower twist would limit my choices. Thanks-
     
  2. Jim Watson

    Jim Watson Member

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    Dec 24, 2002
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    21,967
    Trapdoor Springfields had 20" twist and handled 500 gr roundnose ok. The 520-540 gr BPCR bullets might be a little much, though.
     
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