Quote:
Originally Posted by rsilvers
You would need a 3 fps standard deviation (9 fps extreme spread) - and no one can do that with subsonic rounds.
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I can see its possible with the right conditions, I have shot quite a few groups like this with a 1-10 twist sub 308 rounds with a 190 gr smk and 220 gr smk 300 whisper loads at around 150 yds. Probally not possible with a ar platform but I am sure it can be done with a bolt or single shot setup.
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