Load Specifications
Load data in caliber .300 WSM with .308 | 131gr | THAC EDH 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 Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.
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.
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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 2015 | <<locked>> | 88% | 56,159 psi | 88% | 3136 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 54,737 psi | 86% | 3159 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,157 psi | 85% | 3153 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 56,521 psi | 89% | 3222 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 57,479 psi | 90% | 3245 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,545 psi | 78% | 3182 fps | 97.4% |
| Accurate LT-30 | <<locked>> | 82% | 55,216 psi | 87% | 3077 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,608 psi | 87% | 3104 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 55,332 psi | 87% | 3228 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 96% | 56,231 psi | 88% | 3219 fps | 98.9% |
| ADI AR 2219 | <<locked>> | 82% | 56,347 psi | 88% | 3209 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,302 psi | 85% | 3179 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 88% | 54,346 psi | 85% | 3166 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 56,014 psi | 88% | 3301 fps | 99.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,810 psi | 86% | 3340 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 55,666 psi | 87% | 3241 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,738 psi | 87% | 3150 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 56,449 psi | 88% | 3264 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,704 psi | 76% | 3189 fps | 97.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 56,753 psi | 89% | 3369 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,665 psi | 86% | 3068 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,027 psi | 86% | 3232 fps | 98.5% |
| Bofors RP3 | <<locked>> | 96% | 56,536 psi | 89% | 3261 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 56,304 psi | 88% | 3166 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 57,305 psi | 90% | 3268 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 55,317 psi | 87% | 3310 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 84% | 54,984 psi | 86% | 3186 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 56,217 psi | 88% | 3212 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,157 psi | 85% | 3209 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 90% | 55,825 psi | 87% | 3241 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,860 psi | 70% | 3061 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 54,665 psi | 86% | 3268 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,809 psi | 55% | 1988 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 57,174 psi | 90% | 3241 fps | 99.6% |
| IMR 3031 | <<locked>> | 90% | 54,998 psi | 86% | 3232 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,724 psi | 87% | 3202 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,260 psi | 88% | 3176 fps | 95.8% |
| IMR 4198 | <<locked>> | 84% | 55,927 psi | 88% | 3107 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,181 psi | 74% | 3120 fps | 97% |
| IMR 4895 | <<locked>> | 92% | 54,404 psi | 85% | 3245 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 88% | 54,302 psi | 85% | 3179 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 84% | 54,491 psi | 85% | 3163 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 54,636 psi | 86% | 3202 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 55,071 psi | 86% | 3150 fps | 99.2% |
| Lovex S062 | <<locked>> | 94% | 55,172 psi | 86% | 3199 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 54,491 psi | 85% | 3182 fps | 96.9% |
| Norma 201 | <<locked>> | 92% | 57,522 psi | 90% | 3228 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 54,389 psi | 85% | 3179 fps | 100% |
| Norma 203B | <<locked>> | 94% | 55,593 psi | 87% | 3251 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 49,197 psi | 77% | 3176 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 94% | 56,318 psi | 88% | 3274 fps | 99.3% |
| Ramshot TAC | <<locked>> | 88% | 54,984 psi | 86% | 3186 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,360 psi | 85% | 3212 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 86% | 55,796 psi | 87% | 3182 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,070 psi | 55% | 2034 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 57,537 psi | 90% | 3222 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,868 psi | 86% | 3186 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 56,782 psi | 89% | 3340 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 56,594 psi | 89% | 3376 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,313 psi | 77% | 3202 fps | 97.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,285 psi | 79% | 3225 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 88% | 54,911 psi | 86% | 3163 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,331 psi | 85% | 3166 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 98% | 56,057 psi | 88% | 3245 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 54,491 psi | 85% | 3182 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 90% | 54,636 psi | 86% | 3202 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,172 psi | 86% | 3199 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 57,450 psi | 90% | 3186 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 56,840 psi | 89% | 3219 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 54,505 psi | 85% | 3255 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 56,579 psi | 89% | 3173 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,826 psi | 89% | 3219 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 57,261 psi | 90% | 3251 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,825 psi | 87% | 3117 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,767 psi | 87% | 3110 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 55,883 psi | 88% | 3219 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 55,114 psi | 86% | 3114 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 56,275 psi | 88% | 3212 fps | 99.2% |
| Somchem S355 | <<locked>> | 98% | 56,521 psi | 89% | 3245 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,961 psi | 69% | 3117 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 86% | 55,637 psi | 87% | 3087 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,811 psi | 87% | 3104 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 56,956 psi | 89% | 3189 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,810 psi | 86% | 3153 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,679 psi | 86% | 3169 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,764 psi | 81% | 3179 fps | 97.6% |
| Vihtavuori N530 | <<locked>> | 88% | 55,042 psi | 86% | 3182 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 56,724 psi | 89% | 3202 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,010 psi | 80% | 3182 fps | 97.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,011 psi | 83% | 3163 fps | 99.4% |
| Winchester 748 | <<locked>> | 88% | 54,476 psi | 85% | 3232 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 57,072 psi | 89% | 3258 fps | 99.7% |
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 2015 | <<locked>> | 80% | 43,729 psi | 69% | 2930 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,819 psi | 75% | 3041 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 36,187 psi | 57% | 2822 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,873 psi | 67% | 2982 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 34,185 psi | 54% | 2795 fps | 98.5% |
| Accurate 4350 | <<locked>> | 96% | 43,149 psi | 68% | 3054 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 51,895 psi | 81% | 3025 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,272 psi | 82% | 3048 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,176 psi | 63% | 2923 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 38,740 psi | 61% | 2871 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 52,562 psi | 82% | 3150 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,221 psi | 66% | 2946 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 80% | 41,626 psi | 65% | 2959 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,965 psi | 77% | 3173 fps | 98.8% |
| Alliant Power Pro 2000-MR | 59.7 gr | 84% | 41,582 psi | 65% | 3058 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,373 psi | 52% | 2772 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,284 psi | 77% | 3045 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 38,421 psi | 60% | 2904 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,975 psi | 67% | 3064 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 88% | 37,753 psi | 59% | 2966 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,314 psi | 80% | 3015 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,003 psi | 66% | 2979 fps | 95.6% |
| Bofors RP3 | <<locked>> | 82% | 35,085 psi | 55% | 2828 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,179 psi | 69% | 2946 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,654 psi | 64% | 2959 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,541 psi | 70% | 3104 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 80% | 48,037 psi | 75% | 3071 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,936 psi | 77% | 3091 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 44,280 psi | 69% | 3022 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 40,495 psi | 63% | 2940 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 36,985 psi | 58% | 2881 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,434 psi | 57% | 2890 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,831 psi | 40% | 1778 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,914 psi | 61% | 2887 fps | 96.5% |
| IMR 3031 | <<locked>> | 80% | 39,537 psi | 62% | 2953 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 38,145 psi | 60% | 2851 fps | 95.1% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,968 psi | 83% | 3117 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 49,632 psi | 78% | 3012 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 41,437 psi | 65% | 2999 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 36,869 psi | 58% | 2877 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 42,221 psi | 66% | 2946 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 80% | 47,572 psi | 75% | 3045 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 38,754 psi | 61% | 2904 fps | 98.7% |
| Lovex S060 | <<locked>> | 80% | 40,582 psi | 64% | 2867 fps | 96.5% |
| Lovex S062 | <<locked>> | 80% | 35,520 psi | 56% | 2799 fps | 96.3% |
| Lovex S065 | <<locked>> | 96% | 48,124 psi | 75% | 3064 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 39,305 psi | 62% | 2881 fps | 97.4% |
| Norma 202 | <<locked>> | 80% | 39,421 psi | 62% | 2897 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 37,753 psi | 59% | 2887 fps | 95.6% |
| Norma URP | <<locked>> | 96% | 43,221 psi | 68% | 3051 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 82% | 37,376 psi | 59% | 2897 fps | 95.1% |
| Ramshot TAC | <<locked>> | 84% | 48,327 psi | 76% | 3061 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,278 psi | 65% | 2956 fps | 96.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,774 psi | 72% | 2999 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,991 psi | 41% | 1821 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,282 psi | 74% | 3048 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 51,329 psi | 80% | 3123 fps | 95.5% |
| ReloadSwiss RS 52 | 56.5 gr | 82% | 39,914 psi | 63% | 3009 fps | 95.5% |
| ReloadSwiss RS 60 | 56 gr | 80% | 30,792 psi | 48% | 2772 fps | 95.3% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,888 psi | 67% | 3068 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 46,978 psi | 74% | 3156 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 43,105 psi | 68% | 2946 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 37,507 psi | 59% | 2828 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 84% | 35,317 psi | 55% | 2828 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,124 psi | 75% | 3064 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,754 psi | 61% | 2904 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 35,520 psi | 56% | 2799 fps | 96.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,227 psi | 79% | 3068 fps | 99.1% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,982 psi | 83% | 3156 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 39,073 psi | 61% | 2943 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,995 psi | 78% | 3064 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 43,134 psi | 68% | 2963 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,682 psi | 61% | 2884 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,930 psi | 64% | 2851 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,721 psi | 53% | 2694 fps | 98.9% |
| Somchem S321 | <<locked>> | 80% | 45,600 psi | 71% | 3035 fps | 98.9% |
| Somchem S335 | <<locked>> | 80% | 40,408 psi | 63% | 2851 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 40,001 psi | 63% | 2904 fps | 96.1% |
| Somchem S355 | <<locked>> | 84% | 36,201 psi | 57% | 2835 fps | 95.6% |
| Somchem S365 | <<locked>> | 90% | 31,662 psi | 50% | 2799 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 46,311 psi | 73% | 2940 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,060 psi | 64% | 2854 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,448 psi | 57% | 2825 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,289 psi | 58% | 2825 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 82% | 32,285 psi | 51% | 2710 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 94% | 42,424 psi | 66% | 2992 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 42,206 psi | 66% | 2943 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 36,071 psi | 57% | 2808 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 96% | 44,730 psi | 70% | 3058 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 35,476 psi | 56% | 2792 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 41,379 psi | 65% | 2986 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,985 psi | 60% | 2887 fps | 96.3% |
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 92 powders for .300 WSM loaded with the .308 | 131gr | THAC EDH. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,376 fps; across all powders the maximum-charge window runs from 1,988 fps to 3,376 fps. Accurate 4350 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 131.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for .300 WSM with the .308 | 131gr | THAC EDH they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.