264 Win Mag LR bullets

Majestic 6.5

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Joined
May 28, 2021
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4
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NM
What are your thoughts on a 1:9 twist x 26" barrel spinning a 142 gr Accubond LR fast enough? Nosler recommends 1:8 twist for the ABLR but their load data test barrel is 24" x 1:9. Is the 0.082" longer than 140 Accubond going to be significant?

Fyi; I get 2 different ABLR SG's from Berger calculator (1.27) vs JBM calculator (1.633).
 
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