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5.56x42(6.8) one of the flattest shooting AR15 cartridges.

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  • 5.56x42(6.8) one of the flattest shooting AR15 cartridges.

    5.56x42(6.8) "Yote Smoker"
    New powders like CFE and Lever have increased the possible performance. The 75 Amax is hitting over 3100fps(20" barrel), the 80Amax 3050+(20"barrel). Run the ballistics of a 80gr Amax BC .473 at 3050 or 3150 if pushing it out of a 20" barrel. A 6BRX shooting 105s may beat it but not by much. The 55gr Noslers run over 3500fps. Light bullets mean very low recoil.
    Last edited by Constructor; 05-15-2016, 20:47.

  • #2
    How can you specify "flattest shooting" without stating the distance? Flattest shooting means the least drop at a given distance, but the "flattest shooting" cartridge at 100 yards will never be the flattest shooting cartridge at 1000 yards.

    That doesn't mean one is better than the other. Fattest shooting at a given distance does not necessarily have the best wind deflection performance. I've never considered "flattest shooting" at a given distance to be a performance objective, especially compared to accuracy and terminal energy. There is no best cartridge for all applications.
    Last edited by Louis Boyd; 05-15-2016, 11:10.

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    • #3
      Originally posted by Louis Boyd View Post
      How can you specify "flattest shooting" without stating the distance? Flattest shooting means the least drop at a given distance, but the "flattest shooting" cartridge at 100 yards will never be the flattest shooting cartridge at 1000 yards.

      That doesn't mean one is better than the other. Fattest shooting at a given distance does not necessarily have the best wind deflection performance. I've never considered "flattest shooting" at a given distance to be a performance objective, especially compared to accuracy and terminal energy. There is no best cartridge for all applications.
      How about less drop at 1000 than most AR15 cartridges. Less than the Grendel, 5.56 and 6mmAR. Not less than the 6BRX. Flattest shooting as in less drop seems to help where targets are at unmarked ranges. 3000fps means less time to the target and in many cases less drift. As for accuracy, Peterson shot a 4.5" group at 1000 with a 20" DCM weight barrel. It doesn't take much figuring, you can look at the velocities of the bullets I posted about and their BCs and tell it shoots flat. The 80gr amax at 3050fps should have been a clue.
      Last edited by Constructor; 05-15-2016, 20:48.

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