Load Specifications
Load data in caliber .300 WSM with .308 | 125gr | Winchester Pointed Soft Point bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR 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% | 56,550 psi | 89% | 3222 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,187 psi | 86% | 3245 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,491 psi | 85% | 3232 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 57,188 psi | 90% | 3310 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 54,433 psi | 85% | 3278 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,372 psi | 79% | 3268 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 82% | 55,666 psi | 87% | 3163 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,057 psi | 88% | 3192 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 55,564 psi | 87% | 3310 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 96% | 56,840 psi | 89% | 3307 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 82% | 56,710 psi | 89% | 3294 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 54,955 psi | 86% | 3264 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 88% | 55,056 psi | 86% | 3258 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 56,478 psi | 89% | 3389 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,361 psi | 87% | 3425 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 56,217 psi | 88% | 3327 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 56,202 psi | 88% | 3235 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 57,043 psi | 89% | 3350 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,168 psi | 77% | 3271 fps | 97.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 57,450 psi | 90% | 3455 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,013 psi | 86% | 3146 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,695 psi | 87% | 3320 fps | 98.4% |
| Bofors RP3 | <<locked>> | 96% | 57,217 psi | 90% | 3346 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 56,782 psi | 89% | 3251 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,186 psi | 85% | 3291 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 86% | 55,956 psi | 88% | 3399 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 84% | 55,405 psi | 87% | 3274 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 56,811 psi | 89% | 3301 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,868 psi | 86% | 3294 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 90% | 56,144 psi | 88% | 3323 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,223 psi | 71% | 3136 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,405 psi | 87% | 3353 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,882 psi | 55% | 2054 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 57,653 psi | 90% | 3327 fps | 99.6% |
| IMR 3031 | <<locked>> | 90% | 55,550 psi | 87% | 3320 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,159 psi | 88% | 3287 fps | 98.9% |
| IMR 4198 | <<locked>> | 84% | 56,072 psi | 88% | 3192 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,935 psi | 75% | 3202 fps | 96.9% |
| IMR 4895 | <<locked>> | 92% | 54,839 psi | 86% | 3330 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 88% | 54,955 psi | 86% | 3264 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 84% | 55,042 psi | 86% | 3248 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 55,303 psi | 87% | 3291 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 55,492 psi | 87% | 3235 fps | 99.1% |
| Lovex S062 | <<locked>> | 94% | 55,883 psi | 88% | 3287 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,042 psi | 86% | 3264 fps | 96.9% |
| Norma 201 | <<locked>> | 90% | 54,433 psi | 85% | 3255 fps | 99.7% |
| Norma 202 | <<locked>> | 90% | 54,810 psi | 86% | 3264 fps | 100% |
| Norma 203B | <<locked>> | 94% | 56,188 psi | 88% | 3337 fps | 99.2% |
| Norma URPᴾ | <<locked>> | 100% | 49,995 psi | 78% | 3261 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 94% | 57,101 psi | 89% | 3363 fps | 99.2% |
| Ramshot TAC | <<locked>> | 88% | 55,651 psi | 87% | 3271 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 54,897 psi | 86% | 3297 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,188 psi | 88% | 3264 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,114 psi | 55% | 2100 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,360 psi | 85% | 3248 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,405 psi | 87% | 3271 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 57,421 psi | 90% | 3428 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 57,406 psi | 90% | 3468 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,009 psi | 78% | 3284 fps | 97% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,763 psi | 80% | 3307 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 88% | 55,347 psi | 87% | 3248 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 54,708 psi | 86% | 3248 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 98% | 56,797 psi | 89% | 3333 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,042 psi | 86% | 3264 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,303 psi | 87% | 3291 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 55,883 psi | 88% | 3287 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,157 psi | 85% | 3212 fps | 99.4% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 57,276 psi | 90% | 3304 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,056 psi | 86% | 3340 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 57,043 psi | 89% | 3258 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 57,493 psi | 90% | 3307 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,215 psi | 85% | 3274 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,173 psi | 88% | 3202 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 56,246 psi | 88% | 3192 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 56,260 psi | 88% | 3304 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 55,506 psi | 87% | 3199 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 56,869 psi | 89% | 3297 fps | 99.2% |
| Somchem S355 | <<locked>> | 98% | 57,014 psi | 89% | 3330 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,425 psi | 70% | 3199 fps | 99% |
| Vihtavuori N130 | <<locked>> | 86% | 55,898 psi | 88% | 3173 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,173 psi | 88% | 3189 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 57,624 psi | 90% | 3278 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,288 psi | 87% | 3235 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,361 psi | 87% | 3258 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,475 psi | 82% | 3261 fps | 97.6% |
| Vihtavuori N530 | <<locked>> | 88% | 55,405 psi | 87% | 3264 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 94% | 57,435 psi | 90% | 3287 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,590 psi | 81% | 3261 fps | 97.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,708 psi | 84% | 3245 fps | 99.4% |
| Winchester 748 | <<locked>> | 88% | 54,955 psi | 86% | 3314 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 92% | 57,682 psi | 90% | 3343 fps | 99.6% |
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% | 44,048 psi | 69% | 3012 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,182 psi | 76% | 3123 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 36,637 psi | 57% | 2897 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 43,207 psi | 68% | 3061 fps | 99.3% |
| Accurate 4064 | <<locked>> | 80% | 34,606 psi | 54% | 2871 fps | 98.4% |
| Accurate 4350 | <<locked>> | 96% | 43,598 psi | 68% | 3133 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 52,170 psi | 82% | 3107 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 52,547 psi | 82% | 3133 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,509 psi | 63% | 3002 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 41,582 psi | 65% | 3009 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 53,098 psi | 83% | 3235 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,496 psi | 67% | 3025 fps | 97.9% |
| Alliant AR-Comp | <<locked>> | 80% | 41,959 psi | 66% | 3038 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,385 psi | 77% | 3258 fps | 98.7% |
| Alliant Power Pro 2000-MR | 62.3 gr | 84% | 42,047 psi | 66% | 3140 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 35,868 psi | 56% | 2904 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,472 psi | 78% | 3127 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 41,466 psi | 65% | 3041 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 96% | 43,453 psi | 68% | 3146 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 38,247 psi | 60% | 3045 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,547 psi | 81% | 3094 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,337 psi | 66% | 3058 fps | 95.4% |
| Bofors RP3 | <<locked>> | 82% | 35,447 psi | 56% | 2904 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,382 psi | 70% | 3025 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,988 psi | 64% | 3035 fps | 98.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,976 psi | 70% | 3186 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 80% | 48,443 psi | 76% | 3156 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,501 psi | 78% | 3176 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 44,788 psi | 70% | 3100 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 40,828 psi | 64% | 3018 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 37,333 psi | 59% | 2956 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,767 psi | 58% | 2966 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,889 psi | 41% | 1841 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,204 psi | 61% | 2963 fps | 96.3% |
| IMR 3031 | <<locked>> | 80% | 39,856 psi | 62% | 3031 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 41,089 psi | 64% | 2989 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 49,777 psi | 78% | 3091 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 41,901 psi | 66% | 3077 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 37,202 psi | 58% | 2953 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 42,496 psi | 67% | 3025 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 80% | 47,877 psi | 75% | 3123 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 39,175 psi | 61% | 2982 fps | 98.6% |
| Lovex S060 | <<locked>> | 80% | 40,988 psi | 64% | 2946 fps | 96.4% |
| Lovex S062 | <<locked>> | 80% | 35,911 psi | 56% | 2877 fps | 96.2% |
| Lovex S065 | <<locked>> | 96% | 48,631 psi | 76% | 3146 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 39,697 psi | 62% | 2959 fps | 97.3% |
| Norma 202 | <<locked>> | 80% | 39,813 psi | 62% | 2976 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 38,203 psi | 60% | 2966 fps | 95.4% |
| Norma URP | <<locked>> | 96% | 43,685 psi | 68% | 3133 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 84% | 40,422 psi | 63% | 3038 fps | 95.9% |
| Ramshot TAC | <<locked>> | 84% | 48,544 psi | 76% | 3140 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,727 psi | 65% | 3035 fps | 96.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,035 psi | 72% | 3074 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,005 psi | 41% | 1880 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,790 psi | 75% | 3133 fps | 99.6% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 51,721 psi | 81% | 3205 fps | 95.3% |
| ReloadSwiss RS 52 | 58.9 gr | 82% | 40,277 psi | 63% | 3084 fps | 95.3% |
| ReloadSwiss RS 60 | 58.4 gr | 80% | 31,053 psi | 49% | 2844 fps | 95.1% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 43,511 psi | 68% | 3150 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 47,558 psi | 75% | 3238 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 43,439 psi | 68% | 3025 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 80% | 37,753 psi | 59% | 2900 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 84% | 35,520 psi | 56% | 2897 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,631 psi | 76% | 3146 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,175 psi | 61% | 2982 fps | 98.6% |
| Shooters World Precision | <<locked>> | 80% | 35,911 psi | 56% | 2877 fps | 96.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 50,502 psi | 79% | 3146 fps | 99% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 53,548 psi | 84% | 3241 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 39,349 psi | 62% | 3018 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,372 psi | 79% | 3153 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 46,615 psi | 73% | 3104 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,073 psi | 61% | 2963 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,220 psi | 65% | 2930 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,011 psi | 53% | 2766 fps | 98.8% |
| Somchem S321 | <<locked>> | 80% | 45,876 psi | 72% | 3110 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 40,785 psi | 64% | 2930 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 40,248 psi | 63% | 2976 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 36,622 psi | 57% | 2913 fps | 95.4% |
| Somchem S365 | <<locked>> | 92% | 34,214 psi | 54% | 2940 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 46,673 psi | 73% | 3022 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,408 psi | 65% | 2933 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,782 psi | 58% | 2904 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 37,681 psi | 59% | 2900 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 32,706 psi | 51% | 2785 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 94% | 42,917 psi | 67% | 3071 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 42,525 psi | 67% | 3018 fps | 98% |
| Vihtavuori N540 | <<locked>> | 80% | 36,303 psi | 57% | 2881 fps | 98.4% |
| Vihtavuori N550 | <<locked>> | 96% | 45,223 psi | 71% | 3136 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 35,781 psi | 56% | 2864 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 41,756 psi | 65% | 3064 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,348 psi | 60% | 2963 fps | 96.2% |
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 91 powders for .300 WSM loaded with the .308 | 125gr | Winchester Pointed Soft Point. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,468 fps; across all powders the maximum-charge window runs from 2,054 fps to 3,468 fps. Accurate 4350 gives the best case fill at 100 %, and 91 of the 91 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 125.0 gr projectile in 0.308" calls for a 1:15.0 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .300 WSM with the .308 | 125gr | Winchester Pointed Soft Point 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.