Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 150gr | Norma Semi Soft Point bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Ramshot Hunter.
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% | 55,724 psi | 89% | 3002 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 53,766 psi | 86% | 3005 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,778 psi | 81% | 3031 fps | 98.4% |
| Accurate 4064 | <<locked>> | 86% | 55,985 psi | 90% | 3058 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 53,055 psi | 85% | 3100 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 55,274 psi | 89% | 3084 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,318 psi | 90% | 3087 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 54,157 psi | 87% | 3133 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,521 psi | 89% | 3215 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 53,606 psi | 86% | 3058 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 53,795 psi | 86% | 3077 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 53,795 psi | 86% | 3159 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,940 psi | 88% | 3186 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 53,534 psi | 86% | 3120 fps | 96.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,618 psi | 81% | 3114 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,587 psi | 76% | 3054 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,684 psi | 67% | 2953 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,853 psi | 88% | 3258 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,071 psi | 88% | 3097 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 54,288 psi | 87% | 3074 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,618 psi | 81% | 3114 fps | 96.1% |
| Bofors RP7 | <<locked>> | 90% | 53,925 psi | 86% | 3048 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 86% | 54,752 psi | 88% | 3087 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 92% | 55,288 psi | 89% | 3150 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 90% | 55,361 psi | 89% | 3110 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 82% | 55,869 psi | 90% | 3097 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,215 psi | 87% | 3084 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,883 psi | 90% | 3130 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,767 psi | 89% | 3189 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,085 psi | 58% | 1946 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 53,476 psi | 86% | 3041 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,333 psi | 90% | 3077 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,767 psi | 89% | 3071 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,230 psi | 89% | 3048 fps | 98.3% |
| IMR 4350 | <<locked>> | 94% | 54,694 psi | 88% | 3077 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,666 psi | 89% | 3081 fps | 98.3% |
| IMR 4831 | <<locked>> | 94% | 53,621 psi | 86% | 3091 fps | 99.7% |
| IMR 4895 | <<locked>> | 84% | 55,158 psi | 88% | 3110 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,506 psi | 89% | 3058 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,070 psi | 87% | 3005 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,043 psi | 90% | 3068 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,550 psi | 89% | 3077 fps | 99.2% |
| Lovex S070 | <<locked>> | 92% | 53,388 psi | 86% | 3058 fps | 98.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,163 psi | 68% | 2867 fps | 96.5% |
| Norma 201 | <<locked>> | 82% | 53,969 psi | 87% | 3025 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,520 psi | 87% | 3025 fps | 100% |
| Norma 203B | <<locked>> | 84% | 53,098 psi | 85% | 3064 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,434 psi | 89% | 3130 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 53,708 psi | 86% | 3202 fps | 98.2% |
| Norma URP | <<locked>> | 94% | 55,332 psi | 89% | 3140 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 53,780 psi | 86% | 3091 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,201 psi | 87% | 3136 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,680 psi | 59% | 1991 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,882 psi | 88% | 3068 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,476 psi | 87% | 3150 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,563 psi | 87% | 3186 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 52,852 psi | 85% | 3120 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,303 psi | 89% | 3209 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 54,665 psi | 88% | 3028 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,360 psi | 87% | 3071 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,101 psi | 90% | 3107 fps | 95.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,130 psi | 90% | 3163 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 90% | 53,925 psi | 86% | 3048 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,550 psi | 89% | 3077 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,506 psi | 89% | 3058 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,043 psi | 90% | 3068 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 53,388 psi | 86% | 3058 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,043 psi | 90% | 3133 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 53,534 psi | 86% | 3048 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,897 psi | 88% | 2963 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,622 psi | 89% | 2959 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,419 psi | 89% | 3025 fps | 98.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,622 psi | 89% | 3156 fps | 97.2% |
| Somchem S335 | <<locked>> | 82% | 54,607 psi | 88% | 2959 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,057 psi | 90% | 3074 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 54,520 psi | 87% | 3068 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 54,404 psi | 87% | 3146 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 53,359 psi | 86% | 3081 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 82% | 55,347 psi | 89% | 2943 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,839 psi | 88% | 2992 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,172 psi | 88% | 3002 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,666 psi | 89% | 3038 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,114 psi | 87% | 3081 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,081 psi | 79% | 2989 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 84% | 53,330 psi | 86% | 2995 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 53,156 psi | 85% | 3081 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,359 psi | 86% | 3140 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 53,766 psi | 86% | 3048 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,506 psi | 89% | 3153 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,076 psi | 69% | 3097 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 53,621 psi | 86% | 3058 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,490 psi | 86% | 3071 fps | 96.5% |
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% | 48,849 psi | 78% | 2897 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,007 psi | 75% | 2881 fps | 95.9% |
| Accurate 3100 | <<locked>> | 92% | 38,609 psi | 62% | 2789 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 46,224 psi | 74% | 2897 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,911 psi | 56% | 2723 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 51,779 psi | 83% | 3028 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 44,034 psi | 71% | 2864 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 96% | 50,807 psi | 81% | 3071 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,240 psi | 77% | 3081 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,309 psi | 71% | 2890 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,340 psi | 76% | 2963 fps | 99.4% |
| Alliant Reloder-16 | 60.9 gr | 80% | 34,403 psi | 55% | 2736 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,856 psi | 62% | 2874 fps | 98.9% |
| Alliant Reloder-19 | <<locked>> | 96% | 50,111 psi | 80% | 3058 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 47,297 psi | 76% | 3048 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 86% | 30,327 psi | 49% | 2635 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 96% | 36,724 psi | 59% | 2822 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 88% | 35,244 psi | 57% | 2831 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,648 psi | 83% | 3038 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 44,469 psi | 71% | 2900 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 47,297 psi | 76% | 3048 fps | 95.2% |
| Bofors RP7 | <<locked>> | 84% | 44,657 psi | 72% | 2871 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 45,005 psi | 72% | 2907 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 84% | 42,308 psi | 68% | 2900 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 86% | 48,588 psi | 78% | 2986 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 52,344 psi | 84% | 3038 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,908 psi | 51% | 2625 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,936 psi | 78% | 3015 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 44,773 psi | 72% | 2979 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,021 psi | 43% | 1742 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,067 psi | 80% | 2982 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 52,779 psi | 85% | 3022 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,311 psi | 74% | 2904 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,544 psi | 78% | 2927 fps | 97.1% |
| IMR 4350 | <<locked>> | 88% | 45,353 psi | 73% | 2904 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 43,395 psi | 70% | 2848 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 33,707 psi | 54% | 2677 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 48,544 psi | 78% | 2992 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 51,938 psi | 83% | 3002 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,908 psi | 82% | 2953 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 46,441 psi | 74% | 2904 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,218 psi | 61% | 2733 fps | 95.6% |
| Lovex S070 | <<locked>> | 84% | 41,452 psi | 66% | 2822 fps | 95.4% |
| Lovex S071 | <<locked>> | 98% | 39,450 psi | 63% | 2808 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 50,575 psi | 81% | 2969 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,242 psi | 82% | 2972 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,702 psi | 75% | 2949 fps | 99.6% |
| Norma 204 | <<locked>> | 90% | 48,414 psi | 78% | 3002 fps | 95.1% |
| Norma MRP | <<locked>> | 94% | 43,497 psi | 70% | 2999 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 34,867 psi | 56% | 2720 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 46,934 psi | 75% | 2969 fps | 99.6% |
| Ramshot Hunter | 67.8 gr | 84% | 38,827 psi | 62% | 2825 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,456 psi | 44% | 1785 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,020 psi | 72% | 2887 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,836 psi | 82% | 3084 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,321 psi | 66% | 2943 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,650 psi | 56% | 2736 fps | 95.4% |
| ReloadSwiss RS 70 | 68.2 gr | 82% | 36,376 psi | 58% | 2802 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 48,312 psi | 77% | 2920 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,756 psi | 67% | 2838 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 96% | 52,460 psi | 84% | 3045 fps | 95% |
| Rottweil R 905 | <<locked>> | 96% | 49,110 psi | 79% | 3038 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 84% | 44,657 psi | 72% | 2871 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,218 psi | 61% | 2733 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,938 psi | 83% | 3002 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,441 psi | 74% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 41,452 psi | 66% | 2822 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,844 psi | 69% | 2890 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,198 psi | 80% | 2992 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,532 psi | 83% | 2910 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,395 psi | 70% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 42,801 psi | 69% | 2792 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 48,660 psi | 78% | 3031 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 51,213 psi | 82% | 2907 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,562 psi | 84% | 3015 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 42,192 psi | 68% | 2838 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 31,459 psi | 50% | 2671 fps | 98% |
| Somchem S385 | <<locked>> | 92% | 43,816 psi | 70% | 2900 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 51,996 psi | 83% | 2894 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,269 psi | 77% | 2890 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,530 psi | 78% | 2900 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,306 psi | 65% | 2769 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 36,274 psi | 58% | 2723 fps | 96.2% |
| Vihtavuori N165 | <<locked>> | 98% | 46,035 psi | 74% | 2930 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 47,050 psi | 75% | 2890 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,882 psi | 58% | 2723 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 84% | 31,169 psi | 50% | 2657 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,766 psi | 57% | 2697 fps | 98.3% |
| Winchester 760 | <<locked>> | 84% | 42,467 psi | 68% | 2900 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 28,761 psi | 46% | 2664 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,227 psi | 81% | 3002 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 49,850 psi | 80% | 3009 fps | 95.6% |
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 106 powders for .300 Win. Mag. loaded with the .308 | 150gr | Norma Semi Soft Point. Alliant Reloder-26 delivers the highest muzzle velocity at 3,258 fps; across all powders the maximum-charge window runs from 1,946 fps to 3,258 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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. Alliant Reloder-16, ReloadSwiss RS 70, Ramshot Hunter rank at the top here: for .300 Win. Mag. with the .308 | 150gr | Norma Semi Soft Point they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 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.