Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 150gr | Woodleigh PP SN bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 54,781 psi | 88% | 2986 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 53,055 psi | 85% | 2986 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,879 psi | 80% | 3012 fps | 98.2% |
| Accurate 4064 | <<locked>> | 86% | 55,056 psi | 88% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,651 psi | 89% | 3136 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 54,404 psi | 87% | 3068 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,535 psi | 89% | 3071 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 53,359 psi | 86% | 3110 fps | 96.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,723 psi | 88% | 3196 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,159 psi | 90% | 3097 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 52,939 psi | 85% | 3058 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 53,040 psi | 85% | 3143 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,157 psi | 87% | 3173 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,159 psi | 90% | 3163 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,746 psi | 75% | 3035 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,886 psi | 66% | 2927 fps | 96.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,519 psi | 86% | 3235 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,331 psi | 87% | 3081 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 53,461 psi | 86% | 3058 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 53,229 psi | 85% | 3031 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 86% | 53,954 psi | 87% | 3068 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 92% | 54,563 psi | 87% | 3130 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 90% | 54,462 psi | 87% | 3087 fps | 97% |
| Hodgdon H4895 | <<locked>> | 82% | 54,984 psi | 88% | 3077 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 53,171 psi | 85% | 3064 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,056 psi | 88% | 3114 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,694 psi | 88% | 3166 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,998 psi | 58% | 1939 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,043 psi | 90% | 3081 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,535 psi | 89% | 3061 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,940 psi | 88% | 3051 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,505 psi | 87% | 3031 fps | 98.1% |
| IMR 4350 | <<locked>> | 94% | 54,027 psi | 87% | 3064 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,795 psi | 88% | 3061 fps | 98.1% |
| IMR 4831 | <<locked>> | 96% | 56,159 psi | 90% | 3130 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 54,331 psi | 87% | 3094 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,636 psi | 88% | 3041 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,505 psi | 86% | 2992 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,230 psi | 89% | 3051 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,853 psi | 88% | 3061 fps | 99.1% |
| Lovex S070 | <<locked>> | 94% | 56,057 psi | 90% | 3100 fps | 98.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,307 psi | 66% | 2844 fps | 96.1% |
| Norma 201 | <<locked>> | 82% | 53,113 psi | 85% | 3009 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,882 psi | 86% | 3012 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,796 psi | 89% | 3107 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,592 psi | 88% | 3110 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 52,663 psi | 84% | 3179 fps | 97.9% |
| Norma URP | <<locked>> | 94% | 54,563 psi | 87% | 3123 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 84% | 53,011 psi | 85% | 3074 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 94% | 53,272 psi | 85% | 3114 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,593 psi | 59% | 1982 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,940 psi | 86% | 3048 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,751 psi | 86% | 3130 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,563 psi | 86% | 3166 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,593 psi | 89% | 3159 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,418 psi | 87% | 3189 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 84% | 53,766 psi | 86% | 3009 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,534 psi | 86% | 3051 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,245 psi | 89% | 3143 fps | 97% |
| Rottweil R 907 | <<locked>> | 90% | 53,229 psi | 85% | 3031 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,853 psi | 88% | 3061 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,636 psi | 88% | 3041 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,230 psi | 89% | 3051 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,057 psi | 90% | 3100 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,071 psi | 88% | 3110 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,637 psi | 89% | 3068 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 52,997 psi | 85% | 3035 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,215 psi | 87% | 2946 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,824 psi | 88% | 2943 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,708 psi | 88% | 3009 fps | 98.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,737 psi | 88% | 3136 fps | 96.9% |
| Somchem S335 | <<locked>> | 82% | 53,737 psi | 86% | 2940 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,288 psi | 89% | 3054 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,722 psi | 86% | 3048 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 53,359 psi | 86% | 3127 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,970 psi | 90% | 3120 fps | 97.9% |
| Vihtavuori N133 | <<locked>> | 82% | 54,665 psi | 88% | 2930 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 53,882 psi | 86% | 2972 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,317 psi | 87% | 2989 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,911 psi | 88% | 3025 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 53,185 psi | 85% | 3061 fps | 99.6% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,298 psi | 77% | 2969 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 86% | 56,101 psi | 90% | 3031 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,869 psi | 90% | 3123 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,388 psi | 84% | 3123 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 52,982 psi | 85% | 3031 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,563 psi | 87% | 3130 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,235 psi | 68% | 3071 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 52,837 psi | 85% | 3038 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,460 psi | 84% | 3048 fps | 96.1% |
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% | 48,124 psi | 77% | 2884 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,325 psi | 74% | 2864 fps | 95.6% |
| Accurate 3100 | <<locked>> | 94% | 40,350 psi | 65% | 2825 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 45,527 psi | 73% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,301 psi | 55% | 2703 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 51,155 psi | 82% | 3012 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 43,453 psi | 70% | 2848 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 49,995 psi | 80% | 3048 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,413 psi | 76% | 3061 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,656 psi | 70% | 2874 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,688 psi | 75% | 2946 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,881 psi | 54% | 2717 fps | 95.6% |
| Alliant Reloder-17 | 64.6 gr | 80% | 38,130 psi | 61% | 2851 fps | 98.7% |
| Alliant Reloder-19 | <<locked>> | 96% | 49,313 psi | 79% | 3038 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 86% | 29,791 psi | 48% | 2615 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 98% | 38,392 psi | 62% | 2861 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 88% | 34,548 psi | 55% | 2808 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,879 psi | 82% | 3022 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 43,656 psi | 70% | 2881 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 44,106 psi | 71% | 2854 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 44,251 psi | 71% | 2887 fps | 98% |
| Hodgdon H414 | <<locked>> | 84% | 41,582 psi | 67% | 2877 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 86% | 47,877 psi | 77% | 2966 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 51,692 psi | 83% | 3025 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,357 psi | 50% | 2608 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,080 psi | 77% | 2992 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 44,005 psi | 71% | 2956 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,832 psi | 43% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,458 psi | 79% | 2969 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 51,982 psi | 83% | 3009 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,672 psi | 73% | 2887 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,037 psi | 77% | 2913 fps | 96.8% |
| IMR 4350 | <<locked>> | 88% | 44,715 psi | 72% | 2887 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,888 psi | 69% | 2831 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 33,156 psi | 53% | 2657 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 47,892 psi | 77% | 2979 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 51,039 psi | 82% | 2982 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,299 psi | 81% | 2936 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 45,788 psi | 73% | 2887 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 37,681 psi | 60% | 2713 fps | 95.3% |
| Lovex S070 | <<locked>> | 84% | 40,741 psi | 65% | 2802 fps | 95% |
| Lovex S071 | <<locked>> | 98% | 38,580 psi | 62% | 2785 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 49,922 psi | 80% | 2956 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,589 psi | 81% | 2959 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,064 psi | 74% | 2933 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 50,952 psi | 82% | 3048 fps | 95.6% |
| Norma MRP | <<locked>> | 94% | 42,714 psi | 68% | 2976 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 34,301 psi | 55% | 2703 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 46,151 psi | 74% | 2949 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 40,669 psi | 65% | 2864 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,267 psi | 44% | 1775 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,309 psi | 71% | 2867 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,154 psi | 80% | 3068 fps | 99.6% |
| ReloadSwiss RS 60 | 64.6 gr | 80% | 40,582 psi | 65% | 2923 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 36,448 psi | 58% | 2779 fps | 96% |
| ReloadSwiss RS 70 | 67.2 gr | 82% | 35,810 psi | 57% | 2779 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 47,645 psi | 76% | 2904 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,133 psi | 66% | 2822 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 96% | 48,225 psi | 77% | 3018 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 84% | 44,106 psi | 71% | 2854 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,681 psi | 60% | 2713 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,039 psi | 82% | 2982 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,788 psi | 73% | 2887 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 40,741 psi | 65% | 2802 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,235 psi | 68% | 2877 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,098 psi | 84% | 3009 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,617 psi | 80% | 2976 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,850 psi | 82% | 2894 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,801 psi | 69% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 42,119 psi | 68% | 2772 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 47,776 psi | 77% | 3012 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 50,604 psi | 81% | 2890 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,808 psi | 83% | 2999 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 41,582 psi | 67% | 2822 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 30,763 psi | 49% | 2648 fps | 97.6% |
| Somchem S385 | <<locked>> | 94% | 45,818 psi | 73% | 2936 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 51,343 psi | 82% | 2881 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,500 psi | 76% | 2874 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,906 psi | 77% | 2887 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,682 psi | 64% | 2753 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 35,737 psi | 57% | 2707 fps | 95.9% |
| Vihtavuori N165 | <<locked>> | 98% | 45,078 psi | 72% | 2907 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 46,282 psi | 74% | 2874 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,201 psi | 56% | 2703 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 86% | 32,750 psi | 53% | 2703 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,215 psi | 56% | 2677 fps | 98.1% |
| Winchester 760 | <<locked>> | 84% | 41,756 psi | 67% | 2881 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 90% | 30,110 psi | 48% | 2710 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,472 psi | 79% | 2982 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,820 psi | 78% | 2982 fps | 95.2% |
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 | Woodleigh PP SN. Alliant Reloder-26 delivers the highest muzzle velocity at 3,235 fps; across all powders the maximum-charge window runs from 1,939 fps to 3,235 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 1:15.5 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 Win. Mag. with the .308 | 150gr | Woodleigh PP SN 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.