Help with a start/stop load for RL 17/HV100

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by sewwhat89, Jan 28, 2009.

  1. sewwhat89

    sewwhat89 Well-Known Member

    Messages:
    773
    Joined:
    Jul 26, 2005
    If anyone could run some numbers to help me get some starting loads for RL17 and HV100 I would appreciate it. I don't know what information you need to do that, but here is some anyway.

    300 RSAUM
    26" barrel
    208gr AMAX
    3.005" COAL
    RP 9.5M primer
    300' elevation
    50F temp
     
  2. gbp

    gbp Well-Known Member

    Messages:
    227
    Joined:
    Aug 22, 2006
    Cartridge : .300 Rem SA Ultra Mag
    Bullet : .308, 208, Hornady A-MAX 30712
    Useable Case Capaci: 68.011 grain H2O = 4.416 cm³
    Cartridge O.A.L. L6: 3.005 inch = 76.33 mm
    Barrel Length : 26.0 inch = 660.4 mm
    Powder : Alliant Reloder-17

    Predicted data by increasing and decreasing the given charge,
    incremented in steps of 2.0% of nominal charge.
    CAUTION: Figures exceed maximum and minimum recommended loads !

    Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
    % % Grains fps ft.lbs psi psi % ms

    -20.0 72 47.22 2335 2518 34651 7821 99.3 1.658
    -18.0 74 48.40 2385 2626 36839 7974 99.6 1.619
    -16.0 75 49.58 2434 2736 39162 8113 99.9 1.572
    -14.0 77 50.76 2483 2847 41619 8237 100.0 1.529
    -12.0 79 51.94 2531 2958 44221 8347 100.0 1.487
    -10.0 81 53.12 2578 3071 46981 8453 100.0 1.447
    -08.0 83 54.30 2625 3183 49904 8557 100.0 1.409
    -06.0 84 55.48 2672 3297 53008 8659 100.0 1.372
    -04.0 86 56.66 2718 3411 56298 8759 100.0 1.336 ! Near Maximum !
    -02.0 88 57.84 2763 3527 59793 8857 100.0 1.302 ! Near Maximum !
    +00.0 90 59.02 2808 3643 63497 8952 100.0 1.269 ! Near Maximum !
    +02.0 92 60.20 2853 3760 67446 9046 100.0 1.237 !DANGEROUS LOAD-DO NOT USE!
    +04.0 93 61.38 2898 3878 71612 9136 100.0 1.206 !DANGEROUS LOAD-DO NOT USE!
    +06.0 95 62.56 2942 3997 76025 9225 100.0 1.177 !DANGEROUS LOAD-DO NOT USE!
    +08.0 97 63.74 2986 4117 80711 9310 100.0 1.148 !DANGEROUS LOAD-DO NOT USE!
    +10.0 99 64.92 3030 4239 85689 9393 100.0 1.121 !DANGEROUS LOAD-DO NOT USE!

    Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
    Data for burning rate increased by 10% relative to nominal value:
    +Ba 90 59.02 2881 3833 75066 8679 100.0 1.194 !DANGEROUS LOAD-DO NOT USE!
    Data for burning rate decreased by 10% relative to nominal value:
    -Ba 90 59.02 2698 3363 52381 9349 99.9 1.370
     

  3. gbp

    gbp Well-Known Member

    Messages:
    227
    Joined:
    Aug 22, 2006
    Cartridge : .300 Rem SA Ultra Mag
    Bullet : .308, 208, Hornady A-MAX 30712
    Useable Case Capaci: 68.011 grain H2O = 4.416 cm³
    Cartridge O.A.L. L6: 3.005 inch = 76.33 mm
    Barrel Length : 26.0 inch = 660.4 mm
    Powder : Hodgdon H1000

    Predicted data by increasing and decreasing the given charge,
    incremented in steps of 2.0% of nominal charge.
    CAUTION: Figures exceed maximum and minimum recommended loads !

    Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
    % % Grains fps ft.lbs psi psi % ms

    -20.0 92 56.82 2244 2326 30571 8225 89.3 1.738
    -18.0 94 58.24 2306 2457 32841 8509 90.9 1.686
    -16.0 96 59.66 2370 2593 35299 8780 92.3 1.636
    -14.0 98 61.08 2433 2734 37966 9036 93.7 1.586
    -12.0 101 62.50 2497 2880 40861 9276 94.9 1.530
    -10.0 103 63.92 2562 3031 44012 9497 96.0 1.478
    -08.0 105 65.34 2626 3186 47445 9698 97.0 1.427
    -06.0 108 66.76 2691 3345 51195 9877 97.9 1.378
    -04.0 110 68.18 2756 3509 55300 10031 98.6 1.331 ! Near Maximum !
    -02.0 112 69.60 2821 3676 59804 10159 99.2 1.285 ! Near Maximum !
    +00.0 115 71.02 2886 3848 64759 10260 99.6 1.240 !DANGEROUS LOAD-DO NOT USE!
    +02.0 117 72.44 2951 4023 70225 10331 99.9 1.197 !DANGEROUS LOAD-DO NOT USE!
    +04.0 119 73.86 3016 4202 76280 10372 100.0 1.156 !DANGEROUS LOAD-DO NOT USE!
    +06.0 121 75.28 3081 4385 83005 10386 100.0 1.116 !DANGEROUS LOAD-DO NOT USE!
    +08.0 124 76.70 3146 4571 90510 10391 100.0 1.077 !DANGEROUS LOAD-DO NOT USE!
    +10.0 126 78.12 3211 4761 98918 10389 100.0 1.039 !DANGEROUS LOAD-DO NOT USE!

    Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
    Data for burning rate increased by 10% relative to nominal value:
    +Ba 115 71.02 3022 4217 79102 9757 100.0 1.145 !DANGEROUS LOAD-DO NOT USE!
    Data for burning rate decreased by 10% relative to nominal value:
    -Ba 115 71.02 2688 3336 52363 10164 94.1 1.366
     
  4. 358sta

    358sta Well-Known Member

    Messages:
    187
    Joined:
    Aug 21, 2006
    gbp - I think he was referring to Hybrid 100V from Hodgdon and not H-1000.
     
  5. gbp

    gbp Well-Known Member

    Messages:
    227
    Joined:
    Aug 22, 2006
    my bad, i'll fix it tomorrow
     
  6. sewwhat89

    sewwhat89 Well-Known Member

    Messages:
    773
    Joined:
    Jul 26, 2005
    That looks great for the RL 17. I went ahead and loaded from 58 to 61 grs to get an idea.
     
  7. gbp

    gbp Well-Known Member

    Messages:
    227
    Joined:
    Aug 22, 2006
    Cartridge : .300 Rem SA Ultra Mag
    Bullet : .308, 208, Hornady A-MAX 30712
    Useable Case Capaci: 68.023 grain H2O = 4.417 cm³
    Cartridge O.A.L. L6: 3.005 inch = 76.33 mm
    Barrel Length : 26.0 inch = 660.4 mm
    Powder : Hodgdon Hybrid 100V

    Predicted data by increasing and decreasing the given charge,
    incremented in steps of 2.0% of nominal charge.
    CAUTION: Figures exceed maximum and minimum recommended loads !

    Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
    % % Grains fps ft.lbs psi psi % ms

    -20.0 83 48.40 2290 2421 33764 7418 99.6 1.703
    -18.0 85 49.61 2339 2528 36052 7547 99.8 1.657
    -16.0 87 50.82 2389 2635 38486 7659 100.0 1.609
    -14.0 89 52.03 2437 2743 41050 7757 100.0 1.563
    -12.0 91 53.24 2485 2852 43762 7850 100.0 1.518
    -10.0 93 54.45 2532 2961 46642 7941 100.0 1.475
    -08.0 95 55.66 2579 3072 49703 8029 100.0 1.434
    -06.0 97 56.87 2625 3183 52956 8116 100.0 1.395
    -04.0 99 58.08 2671 3295 56416 8200 100.0 1.357 ! Near Maximum !
    -02.0 101 59.29 2716 3407 60096 8282 100.0 1.320 ! Near Maximum !
    +00.0 103 60.50 2761 3521 64013 8361 100.0 1.285 ! Near Maximum !
    +02.0 105 61.71 2806 3636 68186 8438 100.0 1.251 !DANGEROUS LOAD-DO NOT USE!
    +04.0 107 62.92 2850 3752 72635 8512 100.0 1.219 !DANGEROUS LOAD-DO NOT USE!
    +06.0 109 64.13 2895 3869 77383 8583 100.0 1.188 !DANGEROUS LOAD-DO NOT USE!
    +08.0 111 65.34 2939 3988 82454 8651 100.0 1.157 !DANGEROUS LOAD-DO NOT USE!
    +10.0 114 66.55 2982 4108 87877 8716 100.0 1.128 !DANGEROUS LOAD-DO NOT USE!

    Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
    Data for burning rate increased by 10% relative to nominal value:
    +Ba 103 60.50 2832 3704 76203 8080 100.0 1.206 !DANGEROUS LOAD-DO NOT USE!
    Data for burning rate decreased by 10% relative to nominal value:
    -Ba 103 60.50 2653 3251 51815 8778 100.0 1.394