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Thread: 5.56 round with lowest expansion velocity threshold?

  1. #1
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    5.56 round with lowest expansion velocity threshold?

    The lowest that I've found in my limited research is the Barnes 70 gr TSX which expands down to 1800 FPS, which means it would be good out to 370 yards with a 16" barrel. I seem to recall Lehigh Defense claiming that their Controlled Chaos Copper bullets would work as advertised at an even lower threshold....

    What's the lowest claimed expansion threshold you've seen or witnessed? Seems like that would be the true winner.

  2. #2
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  3. #3
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    I've heard of 62gr Fusion down to 1600ish. That said, I would true your own BC's for that bullet before you go estimating how far you think you can shoot it and still expect expansion.

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