300 win mag loads plz

G

gr8hntr

Beginner
May 20, 2013
44
0
i have a few lbs of rl25 and retumbo from my 30-378 and would like to use them in my 300 win mag ... 165 or 180 gn nosler AB
i know they are slow but hoping someone has tried them and can give me a starting point
thanks
butch
 
Code: 
Cartridge          : .30-378 Weath. Mag.
Bullet             : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 121.261 grain H2O = 7.873 cm³
Cartridge O.A.L. L6: 3.655 inch = 92.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-25

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   74    82.48   2601    2705   33296  13590     98.7    1.616
-18.0   76    84.54   2663    2835   35586  13898     99.3    1.579
-16.0   78    86.60   2725    2968   38031  14173     99.7    1.534
-14.0   80    88.67   2786    3102   40606  14412     99.9    1.487
-12.0   82    90.73   2846    3238   43314  14615    100.0    1.442
-10.0   83    92.79   2906    3374   46178  14801    100.0    1.399
-08.0   85    94.85   2964    3512   49208  14983    100.0    1.357
-06.0   87    96.91   3022    3650   52412  15162    100.0    1.318
-04.0   89    98.98   3079    3789   55801  15337    100.0    1.279  ! Near Maximum !
-02.0   91   101.04   3135    3929   59385  15509    100.0    1.243  ! Near Maximum !
+00.0   93   103.10   3191    4070   63177  15677    100.0    1.208  ! Near Maximum !
+02.0   95   105.16   3246    4212   67189  15842    100.0    1.174  !DANGEROUS LOAD-DO NOT USE!
+04.0   96   107.22   3301    4355   71437  16002    100.0    1.141  !DANGEROUS LOAD-DO NOT USE!
+06.0   98   109.29   3355    4499   75934  16158    100.0    1.110  !DANGEROUS LOAD-DO NOT USE!
+08.0  100   111.35   3409    4645   80699  16310    100.0    1.080  !DANGEROUS LOAD-DO NOT USE!
+10.0  102   113.41   3463    4792   85751  16458    100.0    1.051  !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     93   103.10   3297    4345   75352  15262    100.0    1.117  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     93   103.10   3030    3671   50746  16271    100.0    1.330

Code: 
Cartridge          : .30-378 Weath. Mag.
Bullet             : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 121.261 grain H2O = 7.873 cm³
Cartridge O.A.L. L6: 3.655 inch = 92.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon Retumbo

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   79    88.80   2576    2652   31634  14132     96.7    1.644
-18.0   81    91.02   2644    2793   33884  14525     97.8    1.605
-16.0   83    93.24   2711    2938   36301  14880     98.7    1.566
-14.0   85    95.46   2779    3086   38895  15194     99.3    1.516
-12.0   87    97.68   2846    3237   41682  15462     99.8    1.467
-10.0   89    99.90   2912    3389   44678  15682    100.0    1.419
-08.0   91   102.12   2977    3543   47900  15859    100.0    1.373
-06.0   93   104.34   3042    3698   51365  16026    100.0    1.329
-04.0   95   106.56   3106    3855   55053  16188    100.0    1.287  ! Near Maximum !
-02.0   97   108.78   3169    4013   58978  16346    100.0    1.247  ! Near Maximum !
+00.0   99   111.00   3231    4172   63166  16499    100.0    1.208  ! Near Maximum !
+02.0  101   113.22   3292    4332   67638  16647    100.0    1.171  !DANGEROUS LOAD-DO NOT USE!
+04.0  103   115.44   3353    4495   72415  16791    100.0    1.135  !DANGEROUS LOAD-DO NOT USE!
+06.0  105   117.66   3414    4659   77523  16929    100.0    1.100  !DANGEROUS LOAD-DO NOT USE!
+08.0  107   119.88   3474    4824   82988  17062    100.0    1.067  !DANGEROUS LOAD-DO NOT USE!
+10.0  109   122.10   3534    4992   88842  17190    100.0    1.035  !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     99   111.00   3357    4505   77214  15987    100.0    1.109  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     99   111.00   3037    3687   49522  17138     99.5    1.342
 
Code: 
Cartridge          : .30-378 Weath. Mag.
Bullet             : .308, 165, Nosler Accubond 55602
Useable Case Capaci: 122.649 grain H2O = 7.963 cm³
Cartridge O.A.L. L6: 3.655 inch = 92.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon Retumbo

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   80    91.28   2651    2575   31230  14076     95.3    1.595
-18.0   82    93.56   2723    2716   33476  14506     96.6    1.556
-16.0   84    95.84   2794    2861   35888  14899     97.7    1.518
-14.0   86    98.13   2866    3009   38483  15251     98.6    1.473
-12.0   88   100.41   2937    3161   41273  15559     99.3    1.424
-10.0   90   102.69   3008    3315   44277  15818     99.7    1.377
-08.0   92   104.97   3078    3472   47512  16027    100.0    1.332
-06.0   94   107.25   3147    3629   50999  16189    100.0    1.288
-04.0   96   109.54   3216    3789   54760  16340    100.0    1.247  ! Near Maximum !
-02.0   98   111.82   3283    3949   58793  16486    100.0    1.207  ! Near Maximum !
+00.0  100   114.10   3350    4111   63091  16627    100.0    1.168  ! Near Maximum !
+02.0  102   116.38   3415    4274   67692  16763    100.0    1.131  !DANGEROUS LOAD-DO NOT USE!
+04.0  104   118.66   3481    4438   72621  16895    100.0    1.096  !DANGEROUS LOAD-DO NOT USE!
+06.0  106   120.95   3545    4605   77904  17021    100.0    1.061  !DANGEROUS LOAD-DO NOT USE!
+08.0  108   123.23   3609    4773   83573  17141    100.0    1.028  !DANGEROUS LOAD-DO NOT USE!
+10.0  110   125.51   3673    4943   89663  17256    100.0    0.997  !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    100   114.10   3488    4459   77489  16090    100.0    1.070  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    100   114.10   3137    3605   49433  17183     99.0    1.299

Code: 
Cartridge          : .30-378 Weath. Mag.
Bullet             : .308, 165, Nosler Accubond 55602
Useable Case Capaci: 122.649 grain H2O = 7.963 cm³
Cartridge O.A.L. L6: 3.655 inch = 92.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-25

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   75    84.80   2684    2638   32813  13638     97.7    1.567
-18.0   77    86.92   2749    2769   35091  13979     98.5    1.530
-16.0   79    89.04   2815    2903   37527  14286     99.2    1.491
-14.0   81    91.16   2880    3038   40133  14558     99.6    1.444
-12.0   83    93.28   2944    3175   42896  14792     99.9    1.400
-10.0   85    95.40   3007    3314   45804  14988    100.0    1.357
-08.0   87    97.52   3070    3453   48884  15162    100.0    1.316
-06.0   89    99.64   3132    3593   52147  15331    100.0    1.276
-04.0   90   101.76   3193    3734   55606  15498    100.0    1.239  ! Near Maximum !
-02.0   92   103.88   3253    3876   59271  15660    100.0    1.202  ! Near Maximum !
+00.0   94   106.00   3312    4019   63157  15819    100.0    1.167  ! Near Maximum !
+02.0   96   108.12   3371    4162   67277  15974    100.0    1.134  !DANGEROUS LOAD-DO NOT USE!
+04.0   98   110.24   3429    4307   71647  16124    100.0    1.102  !DANGEROUS LOAD-DO NOT USE!
+06.0  100   112.36   3486    4453   76285  16271    100.0    1.071  !DANGEROUS LOAD-DO NOT USE!
+08.0  102   114.48   3544    4601   81210  16413    100.0    1.041  !DANGEROUS LOAD-DO NOT USE!
+10.0  104   116.60   3600    4750   86442  16550    100.0    1.012  !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     94   106.00   3429    4307   75635  15382    100.0    1.078  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     94   106.00   3135    3601   50486  16398     99.8    1.288
 
I'm needing info for a 300 win mag and reloader 25 and retumbo for a 165 and 180 gn nosler AB
I'm no longer reloading for the 30-378 and have them 2 powders left over
thx
I saved them incase I go back to the 30-378
 
That's what I get for answering late at night! :oops: I was almost asleep. Well, try this data.

Code: 
Cartridge          : .300 Win. Mag.(SAAMI)
Bullet             : .308, 165, Nosler Accubond 55602
Useable Case Capaci: 81.218 grain H2O = 5.273 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-25

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   89    66.00   2554    2390   30893  10762     93.2    1.506
-18.0   91    67.65   2624    2523   33120  11108     94.6    1.466
-16.0   93    69.30   2694    2660   35520  11431     95.9    1.426
-14.0   95    70.95   2765    2801   38103  11728     97.0    1.383
-12.0   98    72.60   2835    2945   40891  11997     97.9    1.337
-10.0  100    74.25   2905    3093   43902  12236     98.7    1.292
-08.0  102    75.90   2975    3243   47155  12442     99.3    1.249
-06.0  104    77.55   3045    3397   50675  12614     99.7    1.208
-04.0  106    79.20   3114    3553   54490  12749     99.9    1.168  ! Near Maximum !
-02.0  109    80.85   3183    3711   58628  12847    100.0    1.130  ! Near Maximum !
+00.0  111    82.50   3250    3871   63124  12930    100.0    1.092  ! Near Maximum !
+02.0  113    84.15   3318    4033   68018  13007    100.0    1.057  !DANGEROUS LOAD-DO NOT USE!
+04.0  115    85.80   3384    4196   73354  13080    100.0    1.022  !DANGEROUS LOAD-DO NOT USE!
+06.0  117    87.45   3451    4362   79184  13147    100.0    0.989  !DANGEROUS LOAD-DO NOT USE!
+08.0  120    89.10   3516    4530   85569  13207    100.0    0.957  !DANGEROUS LOAD-DO NOT USE!
+10.0  122    90.75   3582    4701   92577  13262    100.0    0.925  !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    111    82.50   3390    4210   78269  12392    100.0    1.004  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    111    82.50   3037    3378   50378  13212     97.4    1.207

You likely won't get enough Retumbo in the case to max out. Nevertheless, here is what it looks like.

Code: 
Cartridge          : .300 Win. Mag.(SAAMI)
Bullet             : .308, 165, Nosler Accubond 55602
Useable Case Capaci: 81.218 grain H2O = 5.273 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon Retumbo

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   94    70.80   2494    2280   29404  10799     88.4    1.536
-18.0   96    72.57   2570    2419   31625  11234     90.4    1.493
-16.0   99    74.34   2646    2566   34031  11646     92.3    1.450
-14.0  101    76.11   2724    2718   36647  12031     93.9    1.408
-12.0  103    77.88   2802    2876   39491  12385     95.4    1.358
-10.0  106    79.65   2880    3039   42589  12704     96.7    1.309
-08.0  108    81.42   2959    3208   45970  12983     97.8    1.262
-06.0  111    83.19   3038    3381   49664  13219     98.7    1.216
-04.0  113    84.96   3117    3559   53711  13408     99.4    1.172
-02.0  115    86.73   3195    3741   58151  13548     99.8    1.129  ! Near Maximum !
+00.0  118    88.50   3274    3927   63038  13636    100.0    1.088  ! Near Maximum !
+02.0  120    90.27   3351    4115   68427  13682    100.0    1.048  !DANGEROUS LOAD-DO NOT USE!
+04.0  122    92.04   3429    4307   74397  13718    100.0    1.009  !DANGEROUS LOAD-DO NOT USE!
+06.0  125    93.81   3505    4502   81019  13746    100.0    0.972  !DANGEROUS LOAD-DO NOT USE!
+08.0  127    95.58   3582    4701   88396  13766    100.0    0.936  !DANGEROUS LOAD-DO NOT USE!
+10.0  129    97.35   3658    4903   96650  13777    100.0    0.901  !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    118    88.50   3444    4345   78460  12962    100.0    0.994  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    118    88.50   3016    3332   50202  13591     95.0    1.210
 
Again, Retumbo doesn't look to be the powder to consider with the 180 grain AB.

Code: 
Cartridge          : .300 Win. Mag.(SAAMI)
Bullet             : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 79.821 grain H2O = 5.183 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon Retumbo

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   93    68.64   2423    2347   29751  10879     90.7    1.585
-18.0   95    70.36   2495    2488   31969  11282     92.5    1.540
-16.0   97    72.07   2567    2634   34371  11661     94.2    1.496
-14.0  100    73.79   2640    2786   36975  12011     95.6    1.453
-12.0  102    75.50   2714    2943   39803  12328     96.9    1.402
-10.0  104    77.22   2787    3105   42875  12608     97.9    1.352
-08.0  107    78.94   2861    3271   46220  12849     98.8    1.304
-06.0  109    80.65   2934    3441   49868  13048     99.4    1.258
-04.0  111    82.37   3008    3615   53854  13200     99.8    1.213
-02.0  114    84.08   3080    3793   58216  13305    100.0    1.170  ! Near Maximum !
+00.0  116    85.80   3153    3973   63003  13371    100.0    1.128  ! Near Maximum !
+02.0  118    87.52   3224    4156   68267  13427    100.0    1.088  !DANGEROUS LOAD-DO NOT USE!
+04.0  121    89.23   3296    4341   74073  13477    100.0    1.049  !DANGEROUS LOAD-DO NOT USE!
+06.0  123    90.95   3367    4530   80495  13520    100.0    1.011  !DANGEROUS LOAD-DO NOT USE!
+08.0  125    92.66   3437    4723   87617  13554    100.0    0.975  !DANGEROUS LOAD-DO NOT USE!
+10.0  128    94.38   3508    4919   95550  13580    100.0    0.940  !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    116    85.80   3306    4367   78551  12736    100.0    1.032  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    116    85.80   2917    3401   50103  13559     96.3    1.253

However, RL25 looks very promising with either bullet.

Code: 
Cartridge          : .300 Win. Mag.(SAAMI)
Bullet             : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 79.821 grain H2O = 5.183 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-25

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   87    63.92   2473    2444   31246  10721     94.9    1.556
-18.0   90    65.52   2539    2577   33473  11038     96.1    1.515
-16.0   92    67.12   2605    2712   35869  11332     97.1    1.475
-14.0   94    68.71   2671    2852   38446  11600     98.1    1.428
-12.0   96    70.31   2737    2994   41221  11839     98.8    1.381
-10.0   98    71.91   2803    3140   44212  12047     99.4    1.336
-08.0  100    73.51   2868    3287   47437  12224     99.7    1.293
-06.0  103    75.11   2933    3438   50922  12367    100.0    1.251
-04.0  105    76.70   2997    3590   54689  12475    100.0    1.210  ! Near Maximum !
-02.0  107    78.30   3060    3743   58767  12572    100.0    1.171  ! Near Maximum !
+00.0  109    79.90   3123    3899   63188  12663    100.0    1.134  ! Near Maximum !
+02.0  111    81.50   3186    4056   67990  12751    100.0    1.097  !DANGEROUS LOAD-DO NOT USE!
+04.0  114    83.10   3247    4215   73212  12833    100.0    1.062  !DANGEROUS LOAD-DO NOT USE!
+06.0  116    84.69   3309    4376   78900  12910    100.0    1.029  !DANGEROUS LOAD-DO NOT USE!
+08.0  118    86.29   3370    4540   85110  12981    100.0    0.996  !DANGEROUS LOAD-DO NOT USE!
+10.0  120    87.89   3431    4706   91906  13046    100.0    0.965  !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    109    79.90   3249    4218   78301  12159    100.0    1.044  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    109    79.90   2929    3430   50361  13081     98.3    1.251
 
You're most welcome. I agree that RL25 may be THE powder for your cartridge. It may be as good as it gets so far a velocity is concerned.

Code: 
Cartridge          : .300 Win. Mag.(SAAMI)
Bullet             : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 79.821 grain H2O = 5.183 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63000 psi, or 434 MPa
or a maximum loading ratio or filling of 110 %
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 !

12 loads produced a Loading Ratio below user-defined minimum of 90%. 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                 100.1     79.2     5.13    3139   100.0    63000   13004   1.150  ! Near Maximum !
Alliant Reloder-25                 109.1     79.8     5.17    3121   100.0    63000   12660   1.135  ! Near Maximum !
Norma MRP                          101.0     77.6     5.03    3118   100.0    63000   13174   1.145  ! Near Maximum !
PB Clermont PCL 517                105.6     83.0     5.38    3116    99.2    63000   13301   1.132  ! Near Maximum !
SNPE Vectan SP 12                  105.5     82.8     5.37    3115    99.3    63000   13277   1.132  ! Near Maximum !
Vihtavuori N560                    102.8     77.3     5.01    3114    98.5    63000   13540   1.140  ! Near Maximum !
ReloadSwiss RS 70                   98.0     76.8     4.98    3111   100.0    63000   12766   1.131  ! Near Maximum !
Accurate MAGPRO                    103.1     80.6     5.22    3104    97.4    63000   13620   1.147  ! Near Maximum !
IMR 7828                           107.3     76.8     4.97    3104    98.9    63000   13111   1.130  ! Near Maximum !
IMR 7828 SSC                       101.6     76.8     4.97    3104    98.9    63000   13111   1.130  ! Near Maximum !
Vihtavuori N570                    110.0     85.3     5.53    3095    94.5    58068   14579   1.176  ! Near Maximum !
Raufoss RA15                       103.1     76.7     4.97    3090    99.5    63000   13004   1.146  ! Near Maximum !
Bofors RP5/NP ~approximation       103.1     76.7     4.97    3090    99.5    63000   13004   1.146  ! Near Maximum !
Alliant Reloder-22                 103.1     76.7     4.97    3090    99.5    63000   13004   1.146  ! Near Maximum !
ADI AR 2213                        102.5     76.3     4.94    3089    98.8    63000   12992   1.128  ! Near Maximum !
Winchester WXR                     105.8     77.0     4.99    3088    99.5    63000   13022   1.146  ! Near Maximum !
Bofors RP15                        105.8     77.0     4.99    3088    99.5    63000   13022   1.146  ! Near Maximum !
ADI AP 2214                        106.4     81.2     5.26    3082    99.0    63000   12817   1.127  ! Near Maximum !
Norma MRP 2                        110.0     80.9     5.24    3079    98.9    59970   13463   1.172  ! Near Maximum !
Bofors RP30                        110.0     80.9     5.24    3079    98.9    59970   13463   1.172  ! Near Maximum !
ReloadSwiss RS 60                   91.6     70.7     4.58    3078   100.0    63000   11698   1.139  ! Near Maximum !
Ramshot Magnum                     102.8     82.4     5.34    3071    99.8    63000   12419   1.139  ! Near Maximum !
Alliant Reloder-33                 110.0     88.9     5.76    3068    94.7    57438   14361   1.183  ! Near Maximum !
Rottweil R905                      104.3     76.2     4.94    3056    98.4    63000   12702   1.146  ! Near Maximum !
Alliant Reloder-17                  90.6     69.9     4.53    3054   100.0    63000   11615   1.147  ! Near Maximum !
Elcho 17                            90.6     69.9     4.53    3054   100.0    63000   11615   1.147  ! Near Maximum !
Bofors RP5 NT ~approximation       106.2     79.6     5.16    3053    97.1    63000   12819   1.132  ! Near Maximum !
Alliant Reloder-23                 105.5     76.0     4.92    3052   100.0    63000   11707   1.154  ! Near Maximum !
ADI AR 2209                         99.4     72.7     4.71    3049    99.4    63000   12332   1.135  ! Near Maximum !
Alliant Reloder-19                  99.9     73.5     4.76    3046    99.4    63000   12397   1.143  ! Near Maximum !
Bofors RP14 ~approximation         100.6     74.1     4.80    3039    99.4    63000   12309   1.144  ! Near Maximum !
PB Clermont PCL 511                 92.4     72.4     4.69    3038   100.0    63000   11965   1.150  ! Near Maximum !
Ramshot Hunter                      95.5     72.5     4.70    3037   100.0    63000   11949   1.150  ! Near Maximum !
Hodgdon H414                        90.2     70.2     4.55    3037   100.0    63000   12015   1.151  ! Near Maximum !
Winchester 760                      90.2     70.2     4.55    3037   100.0    63000   12015   1.151  ! Near Maximum !
ReloadSwiss RS 62                   94.0     72.5     4.70    3035   100.0    63000   11719   1.163  ! Near Maximum !
Norma 204                           94.8     72.0     4.67    3023    99.3    63000   12087   1.144  ! Near Maximum !
Bofors RP4 ~approximation           97.9     72.0     4.67    3023    99.3    63000   12087   1.144  ! Near Maximum !
Raufoss RA4                         97.9     72.0     4.67    3023    99.3    63000   12087   1.144  ! Near Maximum !
Hodgdon H4831                      105.2     75.2     4.87    3022    98.2    63000   12249   1.140  ! Near Maximum !
Hodgdon H4831 SC                   101.1     75.2     4.87    3022    98.2    63000   12249   1.140  ! Near Maximum !
ADI AR 2217                        110.0     80.1     5.19    3020    98.5    59095   12639   1.160  ! Near Maximum !
Hodgdon H1000                      110.0     80.1     5.19    3020    98.5    59095   12639   1.160  ! Near Maximum !
Somchem S365                        96.9     70.9     4.60    3017   100.0    63000   11094   1.162  ! Near Maximum !
Vihtavuori N550                     92.3     69.4     4.50    3014   100.0    63000   11576   1.160  ! Near Maximum !
Norma URP                           95.0     69.1     4.48    3014   100.0    63000   11436   1.157  ! Near Maximum !
Bofors RP19 ~approximation          95.0     69.2     4.48    3014   100.0    63000   11433   1.157  ! Near Maximum !
Accurate 4350                       94.1     69.3     4.49    3008   100.0    63000   11396   1.174  ! Near Maximum !
Somchem S385                       100.1     74.4     4.82    3007    99.8    63000   11830   1.163  ! Near Maximum !
Winchester Supreme 780              98.5     76.5     4.95    2998    99.4    63000   11780   1.149  ! Near Maximum !
Bofors RP4 NT ~approximation        95.5     71.4     4.63    2997    99.9    63000   11618   1.156  ! Near Maximum !
IMR 4831                            99.7     70.2     4.55    2995   100.0    63000   11188   1.165  ! Near Maximum !
Rottweil R904                       98.8     71.7     4.64    2994    98.7    63000   11809   1.145  ! Near Maximum !
Vihtavuori N165                    105.3     76.7     4.97    2992    99.7    63000   11562   1.153  ! Near Maximum !
Lovex S071                         109.1     75.9     4.92    2992   100.0    63000   11459   1.177  ! Near Maximum !
Accurate 3100                      103.1     75.9     4.92    2992   100.0    63000   11459   1.177  ! Near Maximum !
Lovex S070                          94.8     69.0     4.47    2982   100.0    63000   11415   1.163  ! Near Maximum !
Vihtavuori N160                    105.4     74.4     4.82    2977    98.6    63000   11593   1.148  ! Near Maximum !
Hodgdon Hybrid 100V                 97.5     69.4     4.50    2969   100.0    63000   10553   1.158  ! Near Maximum !
Bofors RP7                          92.8     67.0     4.34    2965    99.8    63000   11267   1.156  ! Near Maximum !
Rottweil R907                       92.8     67.0     4.34    2965    99.8    63000   11267   1.156  ! Near Maximum !
Somchem S361                        97.7     76.6     4.96    2962    98.1    63000   11583   1.156  ! Near Maximum !
Lovex S065                          93.8     67.5     4.38    2958   100.0    63000   10968   1.163  ! Near Maximum !
Rottweil R903                       90.0     65.5     4.25    2951   100.0    63000   10551   1.175  ! Near Maximum !
Somchem S355                        90.3     65.0     4.21    2949   100.0    63000   10571   1.168  ! Near Maximum !
Lovex D100                         110.0     87.1     5.64    2927    89.4    60103   12046   1.173  ! Near Maximum !
Vihtavuori 24N41                   110.0     86.2     5.59    2899    86.6    54847   12580   1.209  ! Near Maximum !
 
I bought some rl22 and imr4831
A couple of days ago just 1lb each
But I have 3.5lb of retumbo and 2.5lbs of rl25
maybe out of them I'll find a good sub MOA load for deer hunting ..
thx again for all the data
will help me bunches
 
The 300 Win Mag really shines with a 180 gr bullet and 75.0 grs RL22.

JD338
 
Used quite alot of RL25 in the 300 Win Mag. It has worked REALLY well with 180 and 200 grain Noslers. Speeds are very good, along with case fill, accuracy has been all I could ask for as well.

I wouldn't think you'd have much trouble at all getting 3050-3100 out of the 180's.

Good luck with your load work, take some pictures of your load work.
 
165's...


Cartridge : .300 Win. Mag.(R)
Bullet : .308, 165, Nosler AccuBond 55602
Useable Case Capaci: 77.229 grain H2O = 5.014 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-22

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.654% 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

-06.5 99 71.50 2961 3212 49402 12085 96.4 1.226
-05.9 100 72.00 2983 3260 50561 12167 96.7 1.213
-05.2 101 72.50 3005 3309 51750 12247 97.0 1.200
-04.6 101 73.00 3028 3359 52971 12325 97.2 1.187
-03.9 102 73.50 3050 3408 54223 12400 97.5 1.174
-03.3 103 74.00 3072 3459 55508 12473 97.7 1.162 ! Near Maximum !
-02.6 104 74.50 3095 3509 56827 12543 98.0 1.150 ! Near Maximum !
-02.0 104 75.00 3117 3560 58180 12611 98.2 1.138 ! Near Maximum !
-01.3 105 75.50 3139 3611 59571 12677 98.4 1.125 ! Near Maximum !
-00.7 106 76.00 3162 3663 60995 12739 98.6 1.114 ! Near Maximum !
+00.0 106 76.50 3184 3714 62452 12799 98.8 1.102 ! Near Maximum !
+00.7 107 77.00 3206 3767 63943 12857 99.0 1.090 ! Near Maximum !
+01.3 108 77.50 3229 3819 65471 12911 99.1 1.079 !DANGEROUS LOAD-DO NOT USE!
+02.0 108 78.00 3251 3872 67037 12963 99.3 1.067 !DANGEROUS LOAD-DO NOT USE!
+02.6 109 78.50 3273 3925 68645 13012 99.4 1.056 !DANGEROUS LOAD-DO NOT USE!
+03.3 110 79.00 3295 3978 70295 13058 99.5 1.045 !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 76.50 3340 4088 76216 12431 100.0 1.015 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 106 76.50 2968 3227 49722 12424 92.7 1.216


Cartridge : .300 Win. Mag.(R)
Bullet : .308, 165, Nosler AccuBond 55602
Useable Case Capaci: 77.229 grain H2O = 5.014 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : IMR 4831

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.714% 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

-07.1 95 65.00 2890 3060 49562 10710 99.6 1.247
-06.4 96 65.50 2910 3104 50710 10762 99.7 1.234
-05.7 97 66.00 2931 3148 51884 10811 99.8 1.221
-05.0 98 66.50 2952 3192 53084 10857 99.9 1.208
-04.3 98 67.00 2972 3236 54311 10901 99.9 1.195
-03.6 99 67.50 2993 3281 55566 10943 100.0 1.183 ! Near Maximum !
-02.9 100 68.00 3013 3326 56850 10982 100.0 1.171 ! Near Maximum !
-02.1 100 68.50 3033 3371 58163 11018 100.0 1.158 ! Near Maximum !
-01.4 101 69.00 3053 3416 59506 11052 100.0 1.146 ! Near Maximum !
-00.7 102 69.50 3073 3461 60880 11085 100.0 1.135 ! Near Maximum !
+00.0 103 70.00 3093 3506 62286 11118 100.0 1.123 ! Near Maximum !
+00.7 103 70.50 3113 3551 63724 11151 100.0 1.112 ! Near Maximum !
+01.4 104 71.00 3133 3597 65196 11183 100.0 1.100 !DANGEROUS LOAD-DO NOT USE!
+02.1 105 71.50 3153 3643 66702 11215 100.0 1.089 !DANGEROUS LOAD-DO NOT USE!
+02.9 106 72.00 3173 3688 68244 11246 100.0 1.078 !DANGEROUS LOAD-DO NOT USE!
+03.6 106 72.50 3193 3734 69822 11277 100.0 1.067 !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 70.00 3202 3757 74289 10705 100.0 1.043 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 70.00 2929 3143 50413 11377 98.0 1.231



180's......


Cartridge : .300 Win. Mag.(R)
Bullet : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 75.832 grain H2O = 4.924 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-22

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.676% 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

-06.8 98 69.00 2844 3232 49304 11911 97.3 1.274
-06.1 98 69.50 2865 3282 50483 11990 97.5 1.261
-05.4 99 70.00 2887 3331 51691 12067 97.8 1.247
-04.7 100 70.50 2909 3382 52930 12141 98.0 1.233
-04.1 100 71.00 2930 3432 54203 12213 98.2 1.220
-03.4 101 71.50 2952 3483 55503 12282 98.4 1.207 ! Near Maximum !
-02.7 102 72.00 2974 3534 56834 12349 98.6 1.194 ! Near Maximum !
-02.0 103 72.50 2995 3585 58194 12413 98.8 1.182 ! Near Maximum !
-01.4 103 73.00 3017 3637 59587 12475 99.0 1.169 ! Near Maximum !
-00.7 104 73.50 3038 3689 61014 12534 99.2 1.157 ! Near Maximum !
+00.0 105 74.00 3060 3742 62478 12590 99.3 1.144 ! Near Maximum !
+00.7 105 74.50 3081 3794 63979 12643 99.4 1.132 ! Near Maximum !
+01.4 106 75.00 3103 3847 65519 12693 99.5 1.120 !DANGEROUS LOAD-DO NOT USE!
+02.0 107 75.50 3124 3901 67098 12741 99.6 1.108 !DANGEROUS LOAD-DO NOT USE!
+02.7 108 76.00 3145 3954 68718 12785 99.7 1.097 !DANGEROUS LOAD-DO NOT USE!
+03.4 108 76.50 3167 4008 70380 12827 99.8 1.085 !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 74.00 3201 4095 75991 12157 100.0 1.056 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 74.00 2860 3269 49742 12346 94.0 1.261


Cartridge : .300 Win. Mag.(R)
Bullet : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 75.832 grain H2O = 4.924 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : IMR 4831

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.735% 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

-07.4 94 63.00 2781 3092 50171 10475 99.9 1.288
-06.6 95 63.50 2801 3136 51348 10521 100.0 1.274
-05.9 96 64.00 2821 3181 52551 10565 100.0 1.261
-05.1 96 64.50 2841 3226 53781 10605 100.0 1.248
-04.4 97 65.00 2861 3271 55039 10644 100.0 1.234
-03.7 98 65.50 2880 3316 56326 10682 100.0 1.221 ! Near Maximum !
-02.9 99 66.00 2900 3361 57642 10720 100.0 1.208 ! Near Maximum !
-02.2 99 66.50 2919 3406 58988 10757 100.0 1.196 ! Near Maximum !
-01.5 100 67.00 2939 3452 60366 10794 100.0 1.183 ! Near Maximum !
-00.7 101 67.50 2958 3497 61775 10830 100.0 1.171 ! Near Maximum !
+00.0 102 68.00 2977 3543 63216 10866 100.0 1.159 ! Near Maximum !
+00.7 102 68.50 2996 3589 64691 10902 100.0 1.147 !DANGEROUS LOAD-DO NOT USE!
+01.5 103 69.00 3016 3634 66201 10937 100.0 1.135 !DANGEROUS LOAD-DO NOT USE!
+02.2 104 69.50 3035 3681 67746 10972 100.0 1.124 !DANGEROUS LOAD-DO NOT USE!
+02.9 105 70.00 3054 3727 69327 11006 100.0 1.112 !DANGEROUS LOAD-DO NOT USE!
+03.7 105 70.50 3073 3773 70946 11040 100.0 1.101 !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 102 68.00 3074 3777 75140 10482 100.0 1.079 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 68.00 2829 3200 51359 11230 98.8 1.268


There is a fairly large variance in 300 Win Mag cases, so depending on your chosen cases your loads may need more or less powder to reach these speeds. JD was spot on though, 75-76 grains of RL22 with just about any 180 grain bullet works real well.
 
Cant comment on RL25. My 300WM loves RL22 and 180gr AB's. My rifle (Sako m75ss) is 74.3gr and my buddy with the identical rifle is 75.0gr

Never needed to try another powder (I have lots of different ones), just happy with the RL22 plus I cant seem to find the time to reload lately.
 
We used the older Barnes 180 XBT in a couple 300WM and with it 76gr R22 was the berries. We got about 3050-3100 fps if memory serves ( that was from '98 to 2002) I haven't used a 300 since as my 35 Whelen AI was so comparable in the field with the 200X @2970 and was in a favorite rifle. I saw the 300WM with that 180XBT ( I'm confident a Partition or AccuBond would do as well) just wade through African plains game like crazy. Sure, a good 308 would work for the average range, but when we got to Namibia where shots were longer and the wind was prevalent, that 300WM was awesome! No doubt, it is a great game cartridge. Now we have newer powders ( I'm really warming up to R26 in my 7mm Rem mag) these old standbys are just getting better! Good luck to you!
 
So far in my 300 Win Mag.............75 gr RL22, Winchester Brass, 180 gr AccuBond and Fed 215M primers are the ticket in initial testing.
I'm getting an avg of 3116 fps and it's shooting under .75" out of my factory Rem 700

The H4831sc is not even close to getting the same speeds as 75 gr gets only 3025 fps.

From what I've seen so far the RL22 is the ticket. I'd start there.
 
well the 165gn ab & rl22 was 1.5in @100 best group up to 78.5gn ... book shows 79gn ... im gettin no pressure signs ....
loadin up some imr4831 tonight with the 165s .. hope to try them tomorrow ... i have some 180s also just really wanting the 165 to work out
 
Where are the data numbers that keep getting posted.
it's awesome ... is it a website and you just plug the info in ?
Thanks
 
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