Load Specifications
Load data in caliber .300 WSM with .308 | 150gr | Nosler Expansion Tip bullet and 102 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 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.
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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>> | 86% | 55,550 psi | 87% | 2933 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,853 psi | 84% | 2956 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 57,305 psi | 90% | 3002 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,057 psi | 88% | 3025 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,566 psi | 90% | 3002 fps | 96.6% |
| Accurate 4064 | <<locked>> | 94% | 57,305 psi | 90% | 3048 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 3071 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 88% | 54,940 psi | 86% | 3035 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 56,014 psi | 88% | 3031 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 88% | 57,624 psi | 90% | 3041 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,389 psi | 85% | 2966 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,535 psi | 87% | 3097 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,607 psi | 86% | 3156 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,724 psi | 87% | 3054 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,187 psi | 86% | 2940 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,434 psi | 88% | 3081 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,837 psi | 81% | 3077 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 57,000 psi | 89% | 3186 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,637 psi | 57% | 2782 fps | 97.1% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 57,406 psi | 90% | 2917 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,984 psi | 86% | 3051 fps | 99.3% |
| Bofors RP3 | <<locked>> | 94% | 56,405 psi | 88% | 3071 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,579 psi | 89% | 3031 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,825 psi | 87% | 2972 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 56,840 psi | 89% | 3071 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,158 psi | 86% | 3117 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 82% | 54,607 psi | 86% | 2986 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,651 psi | 87% | 3009 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 57,493 psi | 90% | 3084 fps | 99.2% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 56,971 psi | 89% | 3130 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 88% | 55,492 psi | 87% | 3048 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,022 psi | 75% | 2949 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,752 psi | 86% | 3077 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,433 psi | 85% | 3107 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,940 psi | 55% | 1857 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,898 psi | 89% | 3051 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,085 psi | 86% | 3031 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,361 psi | 87% | 3015 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,796 psi | 87% | 2995 fps | 97.1% |
| IMR 4198 | <<locked>> | 82% | 55,434 psi | 87% | 2900 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,476 psi | 84% | 3002 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,376 psi | 87% | 3015 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,749 psi | 80% | 3009 fps | 98.8% |
| IMR 4895 | <<locked>> | 90% | 54,288 psi | 85% | 3054 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 57,624 psi | 90% | 3041 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 53,969 psi | 85% | 2969 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,302 psi | 85% | 3009 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,665 psi | 86% | 2963 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 55,129 psi | 86% | 3012 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 54,157 psi | 85% | 3002 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,071 psi | 86% | 3038 fps | 97.3% |
| Norma 201 | <<locked>> | 90% | 56,913 psi | 89% | 3031 fps | 100% |
| Norma 202 | <<locked>> | 90% | 57,566 psi | 90% | 3035 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,564 psi | 87% | 3064 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 52,866 psi | 83% | 3061 fps | 99% |
| Ramshot Big Game | <<locked>> | 92% | 56,362 psi | 88% | 3091 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,040 psi | 82% | 3054 fps | 97.5% |
| Ramshot TAC | <<locked>> | 86% | 54,505 psi | 85% | 3002 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 57,595 psi | 90% | 3081 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,143 psi | 86% | 2992 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,476 psi | 56% | 1903 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,942 psi | 89% | 3022 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,346 psi | 85% | 3005 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,971 psi | 89% | 3150 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,695 psi | 89% | 3186 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 3097 fps | 98.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,708 psi | 84% | 3127 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 88% | 57,638 psi | 90% | 3012 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 57,261 psi | 90% | 3025 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,956 psi | 88% | 3058 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 56,579 psi | 89% | 3031 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,157 psi | 85% | 3002 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,302 psi | 85% | 3009 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,129 psi | 86% | 3012 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,071 psi | 86% | 3038 fps | 97.3% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,594 psi | 89% | 2989 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,462 psi | 85% | 3071 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 56,246 psi | 88% | 2966 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,449 psi | 88% | 3035 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,956 psi | 89% | 3058 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,172 psi | 86% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,579 psi | 87% | 2920 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,911 psi | 86% | 2956 fps | 97% |
| Somchem S321 | <<locked>> | 84% | 55,129 psi | 86% | 3018 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,433 psi | 85% | 2917 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,115 psi | 88% | 3028 fps | 99.8% |
| Somchem S355 | <<locked>> | 96% | 56,275 psi | 88% | 3054 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,311 psi | 74% | 3009 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,085 psi | 86% | 2887 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,405 psi | 87% | 2907 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 56,971 psi | 89% | 2989 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,578 psi | 86% | 2959 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,447 psi | 85% | 2986 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,637 psi | 87% | 3061 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 86% | 54,563 psi | 86% | 2989 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 56,405 psi | 88% | 3009 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,462 psi | 85% | 3064 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,552 psi | 62% | 2861 fps | 97.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,521 psi | 89% | 3045 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 54,273 psi | 85% | 3035 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 57,261 psi | 90% | 3133 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 56,971 psi | 89% | 3071 fps | 100% |
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% | 46,050 psi | 72% | 2789 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,444 psi | 79% | 2904 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,174 psi | 60% | 2690 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,527 psi | 71% | 2858 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 50,415 psi | 79% | 2887 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 36,114 psi | 57% | 2677 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 37,478 psi | 59% | 2766 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 42,308 psi | 66% | 2805 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 36,013 psi | 56% | 2644 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,454 psi | 70% | 2822 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 44,353 psi | 70% | 2815 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,967 psi | 81% | 3038 fps | 99.8% |
| Alliant Power Pro 2000-MR | 55.8 gr | 80% | 38,551 psi | 60% | 2825 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,418 psi | 56% | 2664 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,924 psi | 81% | 2894 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,058 psi | 60% | 2730 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 37,724 psi | 59% | 2779 fps | 95.7% |
| Alliant Reloder-17 | 56.3 gr | 82% | 32,721 psi | 51% | 2677 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,227 psi | 51% | 2661 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,853 psi | 84% | 2867 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,626 psi | 65% | 2805 fps | 97% |
| Bofors RP3 | <<locked>> | 80% | 34,751 psi | 54% | 2661 fps | 97.2% |
| Bofors RP7 | <<locked>> | 94% | 49,966 psi | 78% | 2920 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,282 psi | 73% | 2812 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,207 psi | 68% | 2838 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,863 psi | 75% | 2992 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 80% | 51,111 psi | 80% | 2930 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,938 psi | 81% | 2953 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 38,319 psi | 60% | 2726 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 94% | 46,485 psi | 73% | 2946 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 42,699 psi | 67% | 2818 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,401 psi | 51% | 2612 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,798 psi | 61% | 2782 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 96% | 50,430 psi | 79% | 3035 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,918 psi | 41% | 1660 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,205 psi | 65% | 2772 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 42,264 psi | 66% | 2822 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,782 psi | 59% | 2684 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 48,979 psi | 77% | 2877 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 52,156 psi | 82% | 2854 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 50,125 psi | 79% | 2946 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 48,863 psi | 77% | 2904 fps | 95.6% |
| IMR 4831 | <<locked>> | 90% | 36,245 psi | 57% | 2720 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 38,986 psi | 61% | 2762 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 80% | 44,454 psi | 70% | 2822 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 50,111 psi | 79% | 2910 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,118 psi | 64% | 2782 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 42,656 psi | 67% | 2746 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 37,507 psi | 59% | 2684 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 42,163 psi | 66% | 2782 fps | 95.4% |
| Lovex S070 | <<locked>> | 94% | 45,368 psi | 71% | 2864 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 41,350 psi | 65% | 2759 fps | 99% |
| Norma 202 | <<locked>> | 80% | 41,771 psi | 65% | 2772 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,405 psi | 59% | 2717 fps | 97% |
| Norma URP | <<locked>> | 90% | 37,782 psi | 59% | 2766 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 37,159 psi | 58% | 2730 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 94% | 42,453 psi | 67% | 2871 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 44,396 psi | 70% | 2818 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,845 psi | 69% | 2841 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,283 psi | 76% | 2874 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,281 psi | 41% | 1703 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,111 psi | 79% | 2913 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 44,454 psi | 70% | 2828 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,798 psi | 62% | 2835 fps | 97% |
| ReloadSwiss RS 60 | 54.9 gr | 80% | 32,532 psi | 51% | 2687 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,405 psi | 59% | 2782 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 40,524 psi | 64% | 2858 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 45,063 psi | 71% | 2808 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,392 psi | 62% | 2707 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 32,677 psi | 51% | 2602 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 94% | 49,966 psi | 78% | 2920 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 42,163 psi | 66% | 2782 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,118 psi | 64% | 2782 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,507 psi | 59% | 2684 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 94% | 45,368 psi | 71% | 2864 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,055 psi | 83% | 2936 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,779 psi | 53% | 2654 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,881 psi | 83% | 2917 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,467 psi | 67% | 2785 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,872 psi | 64% | 2769 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,975 psi | 67% | 2720 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,563 psi | 56% | 2575 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 47,819 psi | 75% | 2838 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 48,051 psi | 75% | 2904 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 42,482 psi | 67% | 2720 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,351 psi | 66% | 2789 fps | 98.1% |
| Somchem S355 | <<locked>> | 80% | 33,649 psi | 53% | 2612 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 29,559 psi | 46% | 2592 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 48,689 psi | 76% | 2792 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,308 psi | 68% | 2720 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,711 psi | 61% | 2697 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,552 psi | 62% | 2707 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 32,039 psi | 50% | 2549 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 37,202 psi | 58% | 2717 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 44,556 psi | 70% | 2818 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 38,043 psi | 60% | 2690 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 39,117 psi | 61% | 2776 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 96% | 34,679 psi | 54% | 2743 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,590 psi | 51% | 2575 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 44,135 psi | 69% | 2864 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 46,717 psi | 73% | 2953 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,379 psi | 63% | 2776 fps | 98.3% |
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 114 powders for .300 WSM loaded with the .308 | 150gr | Nosler Expansion Tip. Alliant Reloder-17 delivers the highest muzzle velocity at 3,186 fps; across all powders the maximum-charge window runs from 1,857 fps to 3,186 fps. Accurate 3100 gives the best case fill at 100 %, and 114 of the 114 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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, Alliant Reloder-17 rank at the top here: for .300 WSM with the .308 | 150gr | Nosler Expansion Tip they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.