QL Request 325 WSM

[ksubuck]

Can anyone help me with a 325 WSM using H4350, 23 inch barrel? Looking at both 180 BTIPS and 200 Accubonds. I want to try for a powder that is a little more temperature stable. Thanks in advance.

 

[DrMike]

Cartridge : .325 WSM
Bullet : .323, 200, Nosler AccuBond 54374
Useable Case Capaci: 69.218 grain H2O = 4.494 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 23.0 inch = 584.2 mm
Powder : Hodgdon H4350

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   84    52.40   2283    2314   33122   7945     90.2    1.502
-18.0   86    53.71   2338    2427   35324   8189     91.4    1.464
-16.0   88    55.02   2392    2542   37671   8427     92.5    1.425
-14.0   90    56.33   2447    2660   40173   8656     93.5    1.382
-12.0   92    57.64   2502    2780   42832   8878     94.4    1.341
-10.0   94    58.95   2557    2903   45642   9089     95.3    1.302
-08.0   97    60.26   2612    3029   48629   9291     96.1    1.265
-06.0   99    61.57   2666    3157   51815   9481     96.9    1.229
-04.0  101    62.88   2721    3288   55214   9660     97.5    1.194  ! Near Maximum !
-02.0  103    64.19   2775    3421   58843   9825     98.1    1.160  ! Near Maximum !
+00.0  105    65.50   2830    3556   62721   9978     98.6    1.128  ! Near Maximum !
+02.0  107    66.81   2884    3693   66870  10116     99.1    1.096  !DANGEROUS LOAD-DO NOT USE!
+04.0  109    68.12   2938    3832   71312  10240     99.4    1.066  !DANGEROUS LOAD-DO NOT USE!
+06.0  111    69.43   2991    3974   76074  10347     99.7    1.037  !DANGEROUS LOAD-DO NOT USE!
+08.0  113    70.74   3045    4117   81186  10439     99.9    1.009  !DANGEROUS LOAD-DO NOT USE!
+10.0  115    72.05   3098    4263   86681  10513    100.0    0.981  !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 105 65.50 2945 3852 73878 9734 100.0 1.053 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 65.50 2672 3170 51778 9759 93.4 1.225


Cartridge : .325 WSM
Bullet : .323, 180, Nosler BalTip 32180
Useable Case Capaci: 71.500 grain H2O = 4.642 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 23.0 inch = 584.2 mm
Powder : Hodgdon H4350

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   85    54.80   2388    2279   32551   8071     88.3    1.441
-18.0   87    56.17   2446    2392   34737   8330     89.5    1.404
-16.0   89    57.54   2505    2507   37068   8583     90.7    1.368
-14.0   91    58.91   2563    2626   39556   8829     91.8    1.327
-12.0   93    60.28   2622    2748   42218   9066     92.9    1.287
-10.0   96    61.65   2681    2872   45062   9294     93.9    1.249
-08.0   98    63.02   2739    2999   48085   9513     94.8    1.212
-06.0  100    64.39   2798    3130   51294   9720     95.7    1.177
-04.0  102    65.76   2857    3262   54721   9916     96.5    1.143  ! Near Maximum !
-02.0  104    67.13   2916    3398   58389  10099     97.2    1.110  ! Near Maximum !
+00.0  106    68.50   2974    3536   62316  10269     97.8    1.078  ! Near Maximum !
+02.0  108    69.87   3033    3676   66525  10424     98.4    1.048  !DANGEROUS LOAD-DO NOT USE!
+04.0  110    71.24   3091    3819   71043  10564     98.9    1.018  !DANGEROUS LOAD-DO NOT USE!
+06.0  113    72.61   3149    3964   75896  10687     99.2    0.989  !DANGEROUS LOAD-DO NOT USE!
+08.0  115    73.98   3207    4112   81118  10794     99.6    0.962  !DANGEROUS LOAD-DO NOT USE!
+10.0  117    75.35   3265    4261   86745  10884     99.8    0.935  !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 106 68.50 3105 3852 73564 10123 100.0 1.005 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 106 68.50 2801 3135 51325 9940 91.9 1.173

 

[ksubuck]

Thank you Dr Mike.

 

[ksubuck]

Nice. The fifth node for OBT is right about where I saw the nodes on OCW work this morning. 64.0gn H4350 was sub MOA with the 180gn BTips, and 63.5 was sub MOA for the 200 AB. The fourth node is out of touch.

Thanks again. I swear I am going to purchase QL for Christmas.