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Clark said:I know with 75 gr Vmax from a 14" twist, as soon as I get long enough range that they drop below 3000 fps, the bullets start to keyhole.
mikecr said:It would tumble immediately, like every other unstable bullet.
mikecr said:There is an absolute line here, because a gyroscopically unstable bullet always tumbles immediately.
Flipside, if it makes it 50yds without tumbling, it will remain gyroscopically stable as Sg only goes up from there. Ever increasing, all the way to transonic(target).
mikecr said:It's not a 14tw barrel.
Check it