Range report Chrono data, and akward shooting positions.

Discussion in 'Black Rifle Forum' started by Alaskapopo, Mar 17, 2010.

  1. Alaskapopo

    Alaskapopo NRA ENDOWMENT

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    It was a beautiful day so I spent it at the range. Temperature was 40 with no wind and the sun was out. I took my chrono out because I wanted to see how my 77 grain 5.56 load would do in my guns for velocity. I am going to the Larue match in Texas this year and I am working on a good long distance load. Here are the chrono results


    3-16-10 Chrono results

    77 grain Loads with Tac max charge.

    Noveske. 14.5 inch barrel
    1. 2479
    2. 2514
    3. 2499
    4. 2521
    5. 2526
    6. 2516
    7. 2482
    Average Velocity 2505
    Extreme spread 47 fps
    USPSA power factor 192

    55 grain FMJ Reloads with H335 powder (plinking load)

    1. 2826
    2. 2880
    3. 2822
    4. 2833
    5. 2811
    Average velocity 2834
    Extreme spread 69 fps
    USPSA power factor 156

    Factory 75 grain Tap.
    1. 2563
    2. 2597
    3. 2596
    Average Velocity 2585
    Extreme spread 33 fps
    USPSA power factor 193


    Daniel Defense 16 inch barrel

    77 grain load

    1. 2514
    2. 2499
    3. 2523
    4. 2452
    5. 2477
    6. 2540
    7. 2542
    Average velocity 2506 fps.
    Extreme Spread 90 fps
    USPSA power factor 192

    55 grain load

    1. 2833
    2. 2807
    3. 2930
    4. 2784
    5. 2809
    Average velocity 2832
    Extreme spread 149
    USPSA power factor 155

    Colt 16 inch 6920

    77 grain load

    1. 2431
    2. 2370
    3. 2373
    4. 2430
    5. 2521
    6. 2507
    7. 2479
    8. 2487
    Average velocity 2449
    Extreme spread 151 fps.
    USPSA power factor 188

    55 grain load

    1. 2775
    2. 2818
    3. 2866
    4. 2853
    5. 2840
    Average Velocity 2830
    Extreme spread 91 fps
    USPSA power factor 155

    Larue 20 inch Stealth

    1. 2636
    2. 2608
    3. 2652
    4. 2734
    5. 2730
    6. 2667
    Average Velocity 2671
    Extreme spread 126
    USPSA power factor 205

    55 grain load

    1. 2914
    2. 2932
    3. 2884
    4. 2992
    Average velocity 2930
    Extreme spread 108
    USPSA power factor 161

    STI Edge in 40 sw. Vita Vory N 320 powder. 180 grain Winchester JHP bullets.

    1. 926
    2. 923
    3. 966
    4. 932
    5. 956
    Average Velocity 940
    Extreme Spread 43 fps
    USPSA power factor 169

    Wilson Combat CQB 200 grain LSW. Bulls eye powder (IDPA load)

    1. 846
    2. 866
    3. 850
    4. 841
    5. 832
    Average Velocity 847
    Extreme Spread 34 fps
    USPSA power factor 169






    Conclusion

    Noveske N4 2505
    DD M4 2506
    Colt 2449
    Larue 2671

    So after playing musical optics with my rifles the last few months I am back to were I started from on my Noveske. I put the Swarovski back on it. I am going to take this rifle to the Larue match and use it for patrol. I like the ACOG with the Aimpoint off set that I had before. But I think having a 1-6 power variable scope gives me a bit more versatility on patrol. I don’t see myself shooting past 200 yards but I have been in situations where it would have been nice to see the target better. A 6x optic does that better than a 3x one.
    [​IMG]
    I was worried that my Noveske may not have enough velocity to knock the 500 yard targets over at the Larue match but I found it is pushing bullets just as fast as my 16 inch DDM4 and faster than my Colt.

    I put the TA 33 and Aimpoint on the Colt and the Tr24 on the DDM4.
    [​IMG]
    [​IMG]

    I also did some work on shooting from awkward positions. Basically shooting from urban prone where the rifle is at 90 degrees in order to shoot under low cover like under a vehicle. Basically I found if you want to hit the target you need to aim at the opposite shoulder from where your scope is facing. So if your ejection port is down you aim at 2 o clock ie the targets left shoulder and if your are shooting ejection port up you aim at the 10 o clock or right shoulder. Below is a target showing what I mean. The sticky notes were my aim points.

    [​IMG]
     
  2. crenca

    crenca

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    Another nice report.

    Aim for the shoulders - good cue...