Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 150gr | Nosler Partition bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 54,099 psi | 87% | 2976 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 53,708 psi | 86% | 2982 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,356 psi | 79% | 2993 fps | 97.9% |
| Accurate 4064 | <<locked>> | 86% | 54,404 psi | 87% | 3028 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,795 psi | 88% | 3120 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 53,809 psi | 86% | 3053 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,969 psi | 88% | 3058 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 52,518 psi | 84% | 3093 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,999 psi | 90% | 3054 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,896 psi | 86% | 3179 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,579 psi | 89% | 3084 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,724 psi | 89% | 3104 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,564 psi | 89% | 3182 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,185 psi | 85% | 3155 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,260 psi | 90% | 3143 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,151 psi | 74% | 3017 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,582 psi | 65% | 2910 fps | 96.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,606 psi | 86% | 3216 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,563 psi | 86% | 3064 fps | 99.7% |
| Bofors RP3 | <<locked>> | 88% | 56,362 psi | 90% | 3100 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 55,927 psi | 90% | 3071 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,014 psi | 90% | 3084 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 53,417 psi | 86% | 3057 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 90% | 55,013 psi | 88% | 3136 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 94% | 55,550 psi | 89% | 3104 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 82% | 54,360 psi | 87% | 3064 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,782 psi | 89% | 3103 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,694 psi | 88% | 3104 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,867 psi | 86% | 3148 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,738 psi | 59% | 1933 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,534 psi | 87% | 3051 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 53,577 psi | 86% | 3029 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 53,911 psi | 86% | 3031 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,275 psi | 90% | 3057 fps | 98.3% |
| IMR 4350 | <<locked>> | 94% | 53,171 psi | 85% | 3045 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,302 psi | 87% | 3048 fps | 97.9% |
| IMR 4831 | <<locked>> | 98% | 52,895 psi | 85% | 3068 fps | 99.6% |
| IMR 4895 | <<locked>> | 84% | 53,679 psi | 86% | 3078 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,999 psi | 90% | 3055 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 53,998 psi | 87% | 3029 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,275 psi | 90% | 3032 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,592 psi | 88% | 3037 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,128 psi | 87% | 3044 fps | 99% |
| Lovex S070 | <<locked>> | 94% | 55,143 psi | 88% | 3079 fps | 98.3% |
| Norma 201 | <<locked>> | 84% | 55,927 psi | 90% | 3050 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,243 psi | 85% | 2999 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,013 psi | 88% | 3088 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,664 psi | 86% | 3091 fps | 96.2% |
| Norma MRPᴾ | <<locked>> | 100% | 53,345 psi | 86% | 3162 fps | 97.6% |
| Norma URP | <<locked>> | 94% | 53,577 psi | 86% | 3105 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 86% | 55,869 psi | 90% | 3117 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 56,101 psi | 90% | 3159 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 56,260 psi | 90% | 3075 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,304 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,666 psi | 60% | 1978 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,490 psi | 86% | 3035 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 52,881 psi | 85% | 3114 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 52,721 psi | 85% | 3152 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,592 psi | 88% | 3141 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,592 psi | 86% | 3170 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 84% | 53,142 psi | 85% | 2997 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,231 psi | 90% | 3092 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,550 psi | 89% | 3124 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 55,927 psi | 90% | 3071 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,128 psi | 87% | 3044 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,998 psi | 87% | 3029 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,592 psi | 88% | 3037 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,143 psi | 88% | 3081 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,302 psi | 87% | 3097 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,897 psi | 88% | 3051 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,767 psi | 89% | 3079 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,534 psi | 86% | 2931 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,273 psi | 87% | 2932 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,853 psi | 86% | 2988 fps | 97.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,838 psi | 86% | 3120 fps | 96.6% |
| Somchem S335 | <<locked>> | 82% | 53,185 psi | 85% | 2928 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,563 psi | 87% | 3041 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,347 psi | 90% | 3090 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,956 psi | 90% | 3164 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,057 psi | 90% | 3103 fps | 97.7% |
| Unknown powder | <<locked>> | 92% | 54,447 psi | 87% | 3113 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 84% | 53,606 psi | 86% | 2916 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 53,156 psi | 85% | 2959 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,069 psi | 85% | 2969 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,476 psi | 87% | 3020 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,839 psi | 88% | 3080 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 86% | 56,086 psi | 90% | 3042 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,303 psi | 89% | 3131 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,852 psi | 85% | 3102 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,811 psi | 89% | 3071 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,013 psi | 88% | 3136 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,540 psi | 68% | 3051 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,621 psi | 86% | 3064 fps | 96.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 47,587 psi | 76% | 2874 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 47,036 psi | 75% | 2861 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 39,740 psi | 64% | 2810 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 45,034 psi | 72% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,721 psi | 54% | 2687 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 50,531 psi | 81% | 2998 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 42,902 psi | 69% | 2832 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 96% | 49,182 psi | 79% | 3028 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,576 psi | 84% | 3002 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,673 psi | 75% | 3043 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,062 psi | 69% | 2859 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,122 psi | 74% | 2930 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,402 psi | 54% | 2698 fps | 95.2% |
| Alliant Reloder-17 | 63.8 gr | 80% | 37,652 psi | 60% | 2837 fps | 98.5% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,472 psi | 78% | 3018 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 29,370 psi | 47% | 2600 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,768 psi | 61% | 2842 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,477 psi | 58% | 2860 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,125 psi | 80% | 3005 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 43,047 psi | 69% | 2865 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 46,238 psi | 74% | 2895 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,170 psi | 84% | 3025 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,700 psi | 70% | 2872 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 82% | 41,785 psi | 67% | 2879 fps | 95% |
| Hodgdon H4350 | <<locked>> | 90% | 48,979 psi | 79% | 2986 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 51,053 psi | 82% | 3007 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,850 psi | 49% | 2592 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,701 psi | 72% | 2927 fps | 99.7% |
| Hodgdon Superformance | 72.4 gr | 86% | 43,279 psi | 69% | 2938 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 43% | 1729 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,237 psi | 73% | 2884 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 47,036 psi | 75% | 2924 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,061 psi | 67% | 2808 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,208 psi | 71% | 2830 fps | 95.7% |
| IMR 4350 | <<locked>> | 88% | 44,034 psi | 71% | 2867 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,395 psi | 68% | 2815 fps | 95.1% |
| IMR 4831 | <<locked>> | 84% | 33,649 psi | 54% | 2668 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 47,268 psi | 76% | 2963 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 52,576 psi | 84% | 3000 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,372 psi | 81% | 2971 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,719 psi | 80% | 2922 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 45,150 psi | 72% | 2872 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 37,318 psi | 60% | 2703 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 42,888 psi | 69% | 2848 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 49,487 psi | 79% | 2944 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,937 psi | 80% | 2945 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,484 psi | 73% | 2917 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 50,270 psi | 81% | 3029 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 45,005 psi | 72% | 3027 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 33,765 psi | 54% | 2686 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 45,368 psi | 73% | 2932 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 40,205 psi | 64% | 2851 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 52,562 psi | 84% | 3013 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,475 psi | 84% | 3033 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,325 psi | 44% | 1771 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,816 psi | 70% | 2851 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,429 psi | 79% | 3051 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,045 psi | 64% | 2907 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,897 psi | 58% | 2764 fps | 95.7% |
| ReloadSwiss RS 70 | 68 gr | 84% | 37,869 psi | 61% | 2833 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 47,036 psi | 75% | 2891 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,509 psi | 65% | 2807 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 96% | 47,529 psi | 76% | 3002 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 46,238 psi | 74% | 2895 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,318 psi | 60% | 2703 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,372 psi | 81% | 2971 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,150 psi | 72% | 2872 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 42,888 psi | 69% | 2848 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,698 psi | 67% | 2860 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,300 psi | 82% | 2990 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,066 psi | 79% | 2963 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,430 psi | 81% | 2884 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,380 psi | 68% | 2738 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 41,655 psi | 67% | 2758 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 50,343 psi | 81% | 3058 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 50,183 psi | 80% | 2881 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,024 psi | 82% | 2983 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 41,176 psi | 66% | 2811 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 30,298 psi | 49% | 2633 fps | 97.4% |
| Somchem S385 | <<locked>> | 94% | 45,165 psi | 72% | 2920 fps | 95.4% |
| Unknown powder | <<locked>> | 80% | 36,579 psi | 59% | 2748 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 47,500 psi | 76% | 2819 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,021 psi | 75% | 2864 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,717 psi | 75% | 2864 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,114 psi | 56% | 2649 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 36,535 psi | 59% | 2722 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 80% | 46,311 psi | 74% | 2882 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,188 psi | 60% | 2768 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 86% | 32,227 psi | 52% | 2687 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,650 psi | 56% | 2662 fps | 97.8% |
| Winchester 760 | <<locked>> | 82% | 41,785 psi | 67% | 2879 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,675 psi | 48% | 2691 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 96% | 49,835 psi | 80% | 2998 fps | 95.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 109 powders for .300 Win. Mag. loaded with the .308 | 150gr | Nosler Partition. Alliant Reloder-26 delivers the highest muzzle velocity at 3,216 fps; across all powders the maximum-charge window runs from 1,933 fps to 3,216 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-19 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 Win. Mag. with the .308 | 150gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Bofors RP15, Hodgdon H4831 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.