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bbl twist questions

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i'm curious how the standard hi-vel 40gr loads do in a 1-9" twist.... i've seen the bbls w/ this twist for the 60gr aquila, and i'm curious how "normal" ammo acts out of it.....

i've learned the 1-16" twist isn't enough to stabilize the 60gr on a dependable basis

i'm also wondering how they do w/ low velocity loads, whether match target loads, subsonic, cb longs, or colibris....

many thx
cletus hungwell