Help with 300 WSM, 190ABLR and 180 Partition with H4350 or IMR4350

CoronaCA · Dec 12, 2024

Hello all!

Long time member, but I mostly troll for information! I figured I would go to the experts. Looking to try 190ABLR and 180 Partitions in my Sako 300WSM. I use mostly 4350 (H and IMR) but the book does not reference this powder. Can anyone provide me the Min/Max for each fo the powders? I really appreciate it.

N

DrMike · Dec 12, 2024

Code:

Cartridge          : .300 WSM (CIP)
Bullet             : .308, 190, Nosler AccuBond LR 58456
Useable Case Capaci: 69.209 grain H2O = 4.494 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : IMR 4350

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   89    56.70   2598    2848   46549   9264     97.4    1.355
-09.0   90    57.33   2625    2906   47998   9357     97.7    1.336
-08.0   91    57.96   2651    2965   49491   9446     98.0    1.317
-07.0   92    58.59   2678    3025   51029   9533     98.3    1.299
-06.0   93    59.22   2704    3085   52614   9616     98.5    1.281
-05.0   94    59.85   2730    3145   54248   9697     98.8    1.263
-04.0   95    60.48   2756    3206   55932   9774     99.0    1.246  ! Near Maximum !
-03.0   96    61.11   2783    3267   57668   9847     99.2    1.229  ! Near Maximum !
-02.0   97    61.74   2809    3328   59458   9917     99.3    1.212  ! Near Maximum !
-01.0   98    62.37   2835    3390   61304   9984     99.5    1.195  ! Near Maximum !
+00.0   99    63.00   2861    3453   63208  10047     99.6    1.179  ! Near Maximum !
+01.0  100    63.63   2887    3515   65172  10106     99.7    1.163  !DANGEROUS LOAD-DO NOT USE!
+02.0  101    64.26   2912    3578   67198  10161     99.8    1.148  !DANGEROUS LOAD-DO NOT USE!
+03.0  102    64.89   2938    3642   69290  10213     99.9    1.133  !DANGEROUS LOAD-DO NOT USE!
+04.0  103    65.52   2964    3705   71448  10260    100.0    1.118  !DANGEROUS LOAD-DO NOT USE!
+05.0  104    66.15   2989    3770   73677  10304    100.0    1.103  !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     99    63.00   2917    3590   68589   9884    100.0    1.139  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     99    63.00   2793    3292   57864  10090     98.3    1.225  ! Near Maximum !

Code:

Cartridge          : .300 WSM (CIP)
Bullet             : .308, 190, Nosler AccuBond LR 58456
Useable Case Capaci: 69.209 grain H2O = 4.494 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H4350 *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   91    56.79   2597    2844   46444   9272     97.3    1.356
-09.0   92    57.42   2623    2903   47892   9365     97.6    1.337
-08.0   93    58.05   2650    2962   49384   9456     97.9    1.318
-07.0   94    58.68   2676    3022   50921   9544     98.2    1.300
-06.0   95    59.31   2703    3082   52505   9628     98.4    1.282
-05.0   96    59.95   2729    3142   54138   9709     98.7    1.264
-04.0   97    60.58   2755    3203   55822   9787     98.9    1.247  ! Near Maximum !
-03.0   98    61.21   2782    3265   57557   9862     99.1    1.230  ! Near Maximum !
-02.0   99    61.84   2808    3326   59347   9933     99.3    1.213  ! Near Maximum !
-01.0  100    62.47   2834    3388   61193  10000     99.4    1.196  ! Near Maximum !
+00.0  101    63.10   2860    3451   63097  10064     99.6    1.180  ! Near Maximum !
+01.0  102    63.73   2886    3514   65061  10124     99.7    1.164  !DANGEROUS LOAD-DO NOT USE!
+02.0  103    64.36   2912    3577   67088  10181     99.8    1.149  !DANGEROUS LOAD-DO NOT USE!
+03.0  104    64.99   2938    3641   69180  10234     99.9    1.133  !DANGEROUS LOAD-DO NOT USE!
+04.0  105    65.62   2963    3705   71340  10282     99.9    1.118  !DANGEROUS LOAD-DO NOT USE!
+05.0  106    66.26   2989    3769   73570  10327    100.0    1.103  !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    63.10   2917    3589   68480   9908    100.0    1.140  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    101    63.10   2792    3289   57752  10101     98.2    1.226  ! Near Maximum !

JD338 · Dec 12, 2024

300 wsm & H4350

Just picked up a m70 300 wsm that I'm still working on getting ready for the range. In the mean time I loaded some 168 e tips with h4350. Started at 61.5g up to 63.5g. Im pretty much dedicated on using this powder since I use it for my dad's 30-06 and I've read a lot of good things about it...

forum.nosler.com

JD338

DrMike · Dec 12, 2024

Code:

Cartridge          : .300 WSM (CIP)
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 72.076 grain H2O = 4.680 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H4350 *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   91    59.13   2674    2857   46391   9634     96.9    1.322
-09.0   92    59.79   2701    2917   47842   9734     97.3    1.303
-08.0   93    60.44   2729    2977   49337   9831     97.6    1.284
-07.0   94    61.10   2757    3037   50878   9924     97.9    1.266
-06.0   95    61.76   2784    3098   52466  10014     98.2    1.248
-05.0   96    62.42   2811    3159   54103  10101     98.4    1.231
-04.0   97    63.07   2839    3221   55791  10185     98.7    1.214  ! Near Maximum !
-03.0   98    63.73   2866    3283   57530  10265     98.9    1.197  ! Near Maximum !
-02.0   99    64.39   2893    3346   59325  10341     99.1    1.181  ! Near Maximum !
-01.0  100    65.04   2920    3409   61176  10414     99.3    1.165  ! Near Maximum !
+00.0  101    65.70   2947    3472   63086  10483     99.4    1.149  ! Near Maximum !
+01.0  102    66.36   2974    3536   65056  10548     99.6    1.133  !DANGEROUS LOAD-DO NOT USE!
+02.0  103    67.01   3001    3600   67089  10609     99.7    1.118  !DANGEROUS LOAD-DO NOT USE!
+03.0  104    67.67   3028    3665   69187  10666     99.8    1.103  !DANGEROUS LOAD-DO NOT USE!
+04.0  105    68.33   3055    3730   71354  10719     99.9    1.088  !DANGEROUS LOAD-DO NOT USE!
+05.0  106    68.99   3082    3795   73591  10768     99.9    1.073  !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    65.70   3007    3615   68467  10341    100.0    1.109  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    101    65.70   2876    3307   57743  10500     97.9    1.194  ! Near Maximum !

Code:

Cartridge          : .300 WSM (CIP)
Bullet             : .308, 180, Nosler PART SP 16331
Useable Case Capaci: 72.076 grain H2O = 4.680 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : IMR 4350

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   89    59.04   2675    2861   46503   9628     97.0    1.320
-09.0   90    59.70   2703    2920   47956   9727     97.4    1.301
-08.0   91    60.35   2731    2980   49452   9822     97.7    1.283
-07.0   92    61.01   2758    3040   50994   9915     98.0    1.265
-06.0   93    61.66   2785    3101   52584  10004     98.3    1.247
-05.0   94    62.32   2813    3162   54222  10090     98.5    1.230
-04.0   95    62.98   2840    3224   55910  10172     98.8    1.213  ! Near Maximum !
-03.0   96    63.63   2867    3286   57651  10251     99.0    1.196  ! Near Maximum !
-02.0   97    64.29   2894    3348   59447  10327     99.2    1.180  ! Near Maximum !
-01.0   98    64.94   2921    3411   61298  10398     99.3    1.164  ! Near Maximum !
+00.0   99    65.60   2948    3475   63208  10466     99.5    1.148  ! Near Maximum !
+01.0  100    66.26   2975    3538   65178  10530     99.6    1.132  !DANGEROUS LOAD-DO NOT USE!
+02.0  101    66.91   3002    3602   67211  10590     99.7    1.117  !DANGEROUS LOAD-DO NOT USE!
+03.0  102    67.57   3029    3667   69309  10646     99.8    1.102  !DANGEROUS LOAD-DO NOT USE!
+04.0  103    68.22   3055    3731   71476  10698     99.9    1.087  !DANGEROUS LOAD-DO NOT USE!
+05.0  104    68.88   3082    3797   73712  10746    100.0    1.073  !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     99    65.60   3008    3616   68588  10317    100.0    1.108  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     99    65.60   2878    3310   57865  10490     98.0    1.193  ! Near Maximum !

CoronaCA · Dec 12, 2024

Wow, this is great and thank you DrMike!

AFG270 · Dec 12, 2024

If you are not happy with the results of those 2 bullets try the regular 180g Accubonds, my M70 300wsm shoots them into bughole groups.

Wow, that muley buck in your avatar is a dandy! What state did he come from?

300WSM · Dec 13, 2024

CoronaCA said:
Wow, this is great and thank you DrMike!

Dr. Mike is a real stand up guy.

He always kindly puts up a QL or two.

He's a real asset to the forum.

SJB358 · Dec 13, 2024

I’ve been using SB6.5 with the 190 ABLRs in ADG brass. So far I’m hovering around 2975 with them and real good accuracy so far. Hope to finish it up once hunting season winds down a bit.

4350, either of them should run excellent as well. Let us know how it works out.