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Old 07-09-2021, 2:07 PM
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Quote:
Originally Posted by LynnJr View Post
Try H4350
Looks like a much better fit.

Code:
Cartridge          : .300 WSM (CIP)
Bullet             : .308, 190, Berger VLD G7 #30414
Useable Case Capaci: 70.653 grain H2O = 4.587 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 26.0 inch = 660.4 mm
Powder             : Hodgdon H4350 *T

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.397% 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

-04.0   95    60.50   2775    3250   53434   8983     99.0    1.331
-03.6   95    60.75   2786    3274   54074   9009     99.1    1.323
-03.2   96    61.00   2796    3298   54720   9036     99.2    1.316  ! Near Maximum !
-02.8   96    61.25   2806    3322   55375   9062     99.3    1.309  ! Near Maximum !
-02.4   97    61.50   2816    3346   56037   9087     99.3    1.302  ! Near Maximum !
-02.0   97    61.75   2827    3371   56708   9112     99.4    1.296  ! Near Maximum !
-01.6   97    62.00   2837    3395   57386   9136     99.4    1.289  ! Near Maximum !
-01.2   98    62.25   2847    3420   58072   9160     99.5    1.282  ! Near Maximum !
-00.8   98    62.50   2857    3444   58766   9183     99.6    1.275  ! Near Maximum !
-00.4   98    62.75   2867    3469   59469   9206     99.6    1.268  ! Near Maximum !
+00.0   99    63.00   2877    3493   60180   9229     99.7    1.262  ! Near Maximum !
+00.4   99    63.25   2888    3518   60900   9250     99.7    1.255  ! Near Maximum !
+00.8  100    63.50   2898    3543   61628   9272     99.7    1.249  ! Near Maximum !
+01.2  100    63.75   2908    3567   62365   9292     99.8    1.242  ! Near Maximum !
+01.6  100    64.00   2918    3592   63111   9312     99.8    1.236  !DANGEROUS LOAD-DO NOT USE!
+02.0  101    64.25   2928    3617   63866   9332     99.8    1.229  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba     99    63.00   2912    3578   63244   9147    100.0    1.236  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba     99    63.00   2839    3399   57130   9270     99.0    1.290  ! Near Maximum !
Might look into some of these too:
Code:
Cartridge          : .300 WSM (CIP)
Bullet             : .308, 190, Berger VLD G7 #30414
Useable Case Capaci: 70.653 grain H2O = 4.587 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 62500 psi, or 430 MPa
or a maximum loading ratio or filling of 102 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

146 loads produced a Loading Ratio below user-defined minimum of 100%. These powders have been skipped.
Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Alliant Reloder-26 *C              102.0     71.4     4.63    3040   100.0    59015   10594   1.257  ! Near Maximum !
Norma MRP *C                       102.0     69.3     4.49    2992    99.8    57685   10689   1.270  ! Near Maximum !
Alliant Reloder-19 *C              102.0     66.4     4.30    2956    99.4    60986   10086   1.245  ! Near Maximum !
IMR 7828 SSC                       102.0     68.2     4.42    2956    98.2    57410   10523   1.263  ! Near Maximum !
Vihtavuori N560 *C                 102.0     67.9     4.40    2931    97.4    54677   10766   1.298  ! Near Maximum !
Winchester Supreme 780             101.3     69.5     4.51    2928    99.4    62500    9619   1.238  ! Near Maximum !
IMR 4831                           102.0     63.6     4.12    2912   100.0    61338    9085   1.266  ! Near Maximum !
Hodgdon H4350 *T                   100.1     63.8     4.13    2909    99.8    62500    9295   1.241  ! Near Maximum !
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