Ql request

Code: 
Cartridge          : .257 Roberts +P+ (not SAAMI)
Bullet             : .257, 100, Nosler BalTip 25100
Useable Case Capaci: 48.676 grain H2O = 3.160 cm³
Cartridge O.A.L. L6: 2.775 inch = 70.49 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Hodgdon H380

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   84    38.61   2770    1703   41678  10118     95.0    1.222
-09.0   85    39.04   2800    1741   43000  10236     95.4    1.204
-08.0   86    39.47   2830    1779   44362  10352     95.9    1.186
-07.0   87    39.90   2860    1817   45766  10464     96.3    1.168
-06.0   88    40.33   2890    1855   47215  10574     96.7    1.151
-05.0   89    40.76   2921    1894   48708  10680     97.0    1.135
-04.0   90    41.18   2951    1933   50249  10783     97.4    1.118  ! Near Maximum !
-03.0   91    41.61   2981    1973   51838  10882     97.7    1.102  ! Near Maximum !
-02.0   92    42.04   3011    2013   53477  10978     98.0    1.086  ! Near Maximum !
-01.0   93    42.47   3041    2053   55168  11070     98.3    1.070  ! Near Maximum !
+00.0   94    42.90   3071    2094   56914  11158     98.5    1.055  ! Near Maximum !
+01.0   95    43.33   3100    2134   58715  11242     98.8    1.040  !DANGEROUS LOAD-DO NOT USE!
+02.0   95    43.76   3130    2176   60574  11322     99.0    1.025  !DANGEROUS LOAD-DO NOT USE!
+03.0   96    44.19   3160    2217   62495  11399     99.2    1.011  !DANGEROUS LOAD-DO NOT USE!
+04.0   97    44.62   3189    2259   64478  11471     99.4    0.996  !DANGEROUS LOAD-DO NOT USE!
+05.0   98    45.05   3219    2301   66527  11538     99.5    0.982  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba     94    42.90   3145    2196   62131  11104     99.7    1.014  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     94    42.90   2984    1977   51749  11076     96.3    1.102  ! Near Maximum !
 
DrMike said:
What bullet on the H&H?
Click to expand...
180 AccuBond or Partition please. Thank you for the 257 data. I have a note indicating 44 grains of H380, not sure where I found that information. Looks like it gets up to 64k pressure. The 257 and the 300 HH are both ruger #1.
Thanks again Dr. MIke
 
Last edited:
Code: 
Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 74.296 grain H2O = 4.824 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H1000 *T

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0  102    69.21   2645    2797   41857  11036     92.6    1.350
-09.0  103    69.98   2681    2872   43441  11188     93.3    1.326
-08.0  104    70.75   2716    2948   45094  11334     94.0    1.302
-07.0  106    71.52   2751    3026   46823  11475     94.6    1.279
-06.0  107    72.29   2787    3105   48629  11611     95.2    1.256
-05.0  108    73.06   2823    3185   50516  11740     95.8    1.234
-04.0  109    73.82   2859    3266   52491  11862     96.3    1.212
-03.0  110    74.59   2895    3349   54559  11977     96.8    1.191  ! Near Maximum !
-02.0  111    75.36   2931    3433   56725  12086     97.3    1.169  ! Near Maximum !
-01.0  112    76.13   2967    3518   58994  12187     97.7    1.148  ! Near Maximum !
+00.0  114    76.90   3003    3605   61374  12280     98.1    1.128  ! Near Maximum !
+01.0  115    77.67   3039    3692   63872  12365     98.5    1.108  !DANGEROUS LOAD-DO NOT USE!
+02.0  116    78.44   3076    3781   66497  12441     98.8    1.088  !DANGEROUS LOAD-DO NOT USE!
+03.0  117    79.21   3112    3872   69253  12509     99.1    1.068  !DANGEROUS LOAD-DO NOT USE!
+04.0  118    79.98   3149    3963   72157  12568     99.3    1.049  !DANGEROUS LOAD-DO NOT USE!
+05.0  119    80.75   3185    4055   75213  12617     99.6    1.030  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba    114    76.90   3095    3828   67874  12198     99.7    1.079  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    114    76.90   2896    3352   55328  12131     95.0    1.183  ! Near Maximum !

That will be one heavily compressed load. It will work, however.
 
Code: 
Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 76.295 grain H2O = 4.954 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H1000 *T

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0  101    70.56   2662    2832   42108  11342     93.1    1.345
-09.0  103    71.34   2697    2907   43693  11496     93.7    1.321
-08.0  104    72.13   2732    2984   45346  11644     94.4    1.298
-07.0  105    72.91   2768    3062   47074  11786     95.0    1.275
-06.0  106    73.70   2803    3141   48876  11922     95.6    1.252
-05.0  107    74.48   2839    3222   50757  12052     96.1    1.230
-04.0  108    75.26   2875    3303   52731  12175     96.6    1.208
-03.0  109    76.05   2911    3386   54794  12291     97.1    1.187  ! Near Maximum !
-02.0  110    76.83   2947    3470   56951  12399     97.6    1.166  ! Near Maximum !
-01.0  112    77.62   2983    3556   59212  12500     98.0    1.145  ! Near Maximum !
+00.0  113    78.40   3019    3643   61580  12593     98.4    1.125  ! Near Maximum !
+01.0  114    79.18   3055    3730   64064  12677     98.7    1.105  !DANGEROUS LOAD-DO NOT USE!
+02.0  115    79.97   3091    3819   66671  12753     99.0    1.085  !DANGEROUS LOAD-DO NOT USE!
+03.0  116    80.75   3127    3909   69407  12820     99.3    1.065  !DANGEROUS LOAD-DO NOT USE!
+04.0  117    81.54   3164    4001   72288  12877     99.5    1.046  !DANGEROUS LOAD-DO NOT USE!
+05.0  118    82.32   3200    4093   75314  12925     99.7    1.027  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba    113    78.40   3109    3864   68123  12489     99.8    1.076  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    113    78.40   2912    3390   55490  12461     95.4    1.180  ! Near Maximum !
 
Code: 
Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 76.295 grain H2O = 4.954 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-26 *C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   91    68.85   2762    3049   42253  12282     99.1    1.359
-09.0   92    69.62   2796    3124   43836  12382     99.4    1.335
-08.0   93    70.38   2829    3199   45484  12473     99.6    1.312
-07.0   94    71.15   2863    3275   47200  12556     99.8    1.290
-06.0   95    71.91   2896    3352   48988  12629     99.9    1.268
-05.0   96    72.68   2929    3429   50858  12693    100.0    1.246
-04.0   97    73.44   2962    3507   52806  12748    100.0    1.225
-03.0   98    74.21   2995    3585   54840  12795    100.0    1.204  ! Near Maximum !
-02.0   99    74.97   3028    3664   56963  12840    100.0    1.184  ! Near Maximum !
-01.0  100    75.74   3060    3743   59182  12885    100.0    1.164  ! Near Maximum !
+00.0  101    76.50   3092    3822   61496  12928    100.0    1.144  ! Near Maximum !
+01.0  102    77.27   3125    3902   63925  12970    100.0    1.125  !DANGEROUS LOAD-DO NOT USE!
+02.0  103    78.03   3157    3983   66449  13010    100.0    1.106  !DANGEROUS LOAD-DO NOT USE!
+03.0  104    78.80   3189    4064   69074  13050    100.0    1.087  !DANGEROUS LOAD-DO NOT USE!
+04.0  105    79.56   3221    4146   71810  13088    100.0    1.069  !DANGEROUS LOAD-DO NOT USE!
+05.0  106    80.33   3252    4228   74664  13124    100.0    1.051  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba    101    76.50   3168    4011   69555  12622    100.0    1.091  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    101    76.50   2998    3592   54024  13265     99.8    1.206  ! Near Maximum !

Much better on fill.

Code: 
Cartridge          : .300 H.& H. Mag.
Bullet             : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 74.296 grain H2O = 4.824 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-26 *C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   92    67.77   2757    3037   42205  12031     99.0    1.358
-09.0   93    68.52   2790    3112   43793  12130     99.3    1.334
-08.0   94    69.28   2824    3187   45447  12221     99.5    1.311
-07.0   95    70.03   2858    3264   47175  12303     99.7    1.289
-06.0   96    70.78   2891    3341   48975  12376     99.8    1.267
-05.0   97    71.54   2925    3418   50855  12440     99.9    1.245
-04.0   98    72.29   2958    3497   52816  12494    100.0    1.223
-03.0   99    73.04   2991    3575   54865  12540    100.0    1.202  ! Near Maximum !
-02.0  100    73.79   3024    3654   57007  12582    100.0    1.182  ! Near Maximum !
-01.0  101    74.55   3057    3734   59243  12623    100.0    1.162  ! Near Maximum !
+00.0  102    75.30   3089    3814   61583  12663    100.0    1.142  ! Near Maximum !
+01.0  103    76.05   3122    3895   64030  12702    100.0    1.122  !DANGEROUS LOAD-DO NOT USE!
+02.0  104    76.81   3154    3976   66589  12740    100.0    1.103  !DANGEROUS LOAD-DO NOT USE!
+03.0  105    77.56   3186    4058   69275  12776    100.0    1.084  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    78.31   3218    4140   72071  12810    100.0    1.066  !DANGEROUS LOAD-DO NOT USE!
+05.0  107    79.07   3250    4223   74987  12844    100.0    1.048  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba    102    75.30   3165    4004   69747  12356    100.0    1.089  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    102    75.30   2994    3582   54145  12994     99.8    1.203  ! Near Maximum !
 
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