Load Specifications
Load data in caliber .300 WSM with .308 | 168gr | Nosler RDF bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Hodgdon Superformance.
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>> | 82% | 54,563 psi | 86% | 2756 fps | 100% |
| Accurate 2495 | <<locked>> | 84% | 56,130 psi | 88% | 2838 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,130 psi | 90% | 2884 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,855 psi | 89% | 2841 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,947 psi | 69% | 2733 fps | 97% |
| Accurate 4064 | <<locked>> | 90% | 57,000 psi | 89% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,159 psi | 90% | 2969 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 57,072 psi | 89% | 2910 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,665 psi | 86% | 2861 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,706 psi | 81% | 2890 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,927 psi | 88% | 2858 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,174 psi | 90% | 2828 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,159 psi | 90% | 3038 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,955 psi | 86% | 2884 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,303 psi | 87% | 2904 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,592 psi | 86% | 2972 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,724 psi | 87% | 3009 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,560 psi | 79% | 2874 fps | 95.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,713 psi | 65% | 2762 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,905 psi | 74% | 2933 fps | 99% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,072 psi | 89% | 2927 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,405 psi | 87% | 2897 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,419 psi | 87% | 2871 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,595 psi | 90% | 2838 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,593 psi | 87% | 2890 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,624 psi | 90% | 2992 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 55,869 psi | 88% | 2835 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,405 psi | 88% | 2913 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 54,099 psi | 85% | 2936 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 96% | 54,723 psi | 86% | 2897 fps | 97% |
| Hodgdon H4895 | <<locked>> | 86% | 57,653 psi | 90% | 2920 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,360 psi | 85% | 2897 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,479 psi | 90% | 2956 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,666 psi | 89% | 3005 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,708 psi | 56% | 1765 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,696 psi | 90% | 2904 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,434 psi | 88% | 2877 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,782 psi | 89% | 2881 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,072 psi | 88% | 2854 fps | 98.3% |
| IMR 4350 | <<locked>> | 98% | 55,796 psi | 87% | 2897 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,276 psi | 90% | 2900 fps | 98.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,285 psi | 80% | 2864 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 56,739 psi | 89% | 2933 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,927 psi | 88% | 2858 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,130 psi | 90% | 2884 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,376 psi | 88% | 2835 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,450 psi | 90% | 2887 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,840 psi | 89% | 2897 fps | 99.3% |
| Lovex S070 | <<locked>> | 98% | 57,711 psi | 90% | 2930 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 55,811 psi | 87% | 2854 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,420 psi | 88% | 2851 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,549 psi | 85% | 2890 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,492 psi | 89% | 2946 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 46,818 psi | 73% | 2890 fps | 96.6% |
| Norma URP | <<locked>> | 98% | 55,883 psi | 88% | 2953 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 55,259 psi | 87% | 2917 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,723 psi | 86% | 2953 fps | 98.9% |
| Ramshot TAC | <<locked>> | 84% | 56,188 psi | 88% | 2881 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,782 psi | 87% | 2894 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,695 psi | 89% | 2861 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,187 psi | 57% | 1804 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,579 psi | 89% | 2894 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,912 psi | 88% | 2969 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,622 psi | 87% | 3005 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,927 psi | 89% | 2992 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,173 psi | 88% | 3025 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 56,521 psi | 89% | 2831 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,173 psi | 88% | 2851 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,550 psi | 87% | 2890 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,419 psi | 87% | 2871 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,840 psi | 89% | 2897 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,130 psi | 90% | 2884 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,450 psi | 90% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,711 psi | 90% | 2930 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,246 psi | 90% | 2953 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,737 psi | 86% | 2858 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,347 psi | 87% | 2877 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,956 psi | 89% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,363 psi | 90% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,159 psi | 90% | 2851 fps | 98.5% |
| Somchem S321 | <<locked>> | 82% | 57,363 psi | 90% | 2890 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,565 psi | 89% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,433 psi | 85% | 2851 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,579 psi | 87% | 2887 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,215 psi | 85% | 2959 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,299 psi | 79% | 2841 fps | 96.9% |
| Unknown powder | <<locked>> | 96% | 56,956 psi | 89% | 2963 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 82% | 55,608 psi | 87% | 2733 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,666 psi | 89% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,304 psi | 88% | 2815 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,144 psi | 88% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,913 psi | 89% | 2864 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,551 psi | 90% | 2933 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 55,608 psi | 87% | 2864 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,695 psi | 87% | 2848 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,360 psi | 85% | 2930 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,340 psi | 73% | 2841 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,984 psi | 86% | 2874 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 57,319 psi | 90% | 2917 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,099 psi | 85% | 2936 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,507 psi | 59% | 2782 fps | 99.6% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,460 psi | 82% | 2861 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 2015 | <<locked>> | 80% | 51,198 psi | 80% | 2707 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 49,139 psi | 77% | 2740 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,705 psi | 78% | 2779 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 46,717 psi | 73% | 2674 fps | 95.7% |
| Accurate 3100 | <<locked>> | 96% | 38,305 psi | 60% | 2621 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 41,524 psi | 65% | 2635 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,953 psi | 52% | 2516 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 47,311 psi | 74% | 2753 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,074 psi | 63% | 2598 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 98% | 48,457 psi | 76% | 2831 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,356 psi | 77% | 2756 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,212 psi | 79% | 2736 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,236 psi | 68% | 2792 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,987 psi | 63% | 2625 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,931 psi | 67% | 2687 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 33,112 psi | 52% | 2530 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,577 psi | 54% | 2595 fps | 97.9% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,456 psi | 74% | 2818 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,863 psi | 45% | 2438 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,404 psi | 55% | 2674 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,717 psi | 73% | 2759 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 39,769 psi | 62% | 2628 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 43,294 psi | 68% | 2657 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,937 psi | 80% | 2740 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,544 psi | 76% | 2782 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,766 psi | 84% | 2933 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 80% | 52,315 psi | 82% | 2785 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,538 psi | 64% | 2635 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 84% | 41,176 psi | 65% | 2700 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 48,327 psi | 76% | 2789 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 47,761 psi | 75% | 2762 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,587 psi | 45% | 2375 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,845 psi | 69% | 2736 fps | 99.8% |
| Hodgdon Superformance | 63.8 gr | 88% | 42,772 psi | 67% | 2756 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,614 psi | 42% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,467 psi | 67% | 2651 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 43,830 psi | 69% | 2687 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,436 psi | 62% | 2579 fps | 98.2% |
| IMR 4166 Enduron | <<locked>> | 82% | 41,539 psi | 65% | 2592 fps | 95.1% |
| IMR 4350 | <<locked>> | 90% | 43,482 psi | 68% | 2684 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,061 psi | 66% | 2631 fps | 95.2% |
| IMR 4831 | <<locked>> | 86% | 32,909 psi | 52% | 2500 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 44,019 psi | 69% | 2720 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 49,356 psi | 77% | 2756 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,833 psi | 73% | 2730 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,036 psi | 74% | 2687 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 42,308 psi | 66% | 2641 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 36,927 psi | 58% | 2530 fps | 95.2% |
| Lovex S070 | <<locked>> | 88% | 42,395 psi | 66% | 2664 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 46,180 psi | 72% | 2700 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 46,601 psi | 73% | 2703 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,322 psi | 66% | 2677 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 49,313 psi | 77% | 2831 fps | 95.2% |
| Norma MRP | <<locked>> | 98% | 43,685 psi | 68% | 2825 fps | 95.7% |
| Norma URP | <<locked>> | 82% | 33,199 psi | 52% | 2516 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 42,018 psi | 66% | 2694 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 39,465 psi | 62% | 2671 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 49,313 psi | 77% | 2769 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,066 psi | 77% | 2789 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,113 psi | 83% | 2805 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,122 psi | 43% | 1617 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,872 psi | 64% | 2618 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,600 psi | 71% | 2799 fps | 99.2% |
| ReloadSwiss RS 60 | 54.8 gr | 80% | 36,796 psi | 58% | 2661 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,998 psi | 55% | 2589 fps | 95.8% |
| ReloadSwiss RS 70 | 59.9 gr | 86% | 37,391 psi | 59% | 2654 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 50,415 psi | 79% | 2740 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,063 psi | 69% | 2654 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,478 psi | 59% | 2575 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 43,294 psi | 68% | 2657 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,927 psi | 58% | 2530 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,833 psi | 73% | 2730 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,308 psi | 66% | 2641 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 42,395 psi | 66% | 2664 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,464 psi | 60% | 2625 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,776 psi | 75% | 2746 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,759 psi | 72% | 2720 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,369 psi | 74% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,610 psi | 62% | 2513 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,234 psi | 65% | 2579 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 53,664 psi | 84% | 2838 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,036 psi | 74% | 2648 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,529 psi | 74% | 2740 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 38,130 psi | 60% | 2575 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 27,920 psi | 44% | 2411 fps | 96.8% |
| Somchem S385 | <<locked>> | 96% | 43,990 psi | 69% | 2726 fps | 95.3% |
| Unknown powder | <<locked>> | 82% | 36,056 psi | 56% | 2575 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 52,475 psi | 82% | 2690 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,730 psi | 70% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,700 psi | 68% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,743 psi | 69% | 2635 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,619 psi | 51% | 2431 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 80% | 33,808 psi | 53% | 2497 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 52,127 psi | 82% | 2812 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,178 psi | 68% | 2651 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,229 psi | 54% | 2536 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 31,125 psi | 49% | 2513 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,198 psi | 50% | 2441 fps | 97.2% |
| Winchester 748 | <<locked>> | 80% | 53,505 psi | 84% | 2861 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 41,176 psi | 65% | 2700 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,935 psi | 45% | 2516 fps | 95.9% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,747 psi | 76% | 2799 fps | 95.1% |
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 119 powders for .300 WSM loaded with the .308 | 168gr | Nosler RDF. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,038 fps; across all powders the maximum-charge window runs from 1,765 fps to 3,038 fps. Accurate 3100 gives the best case fill at 100 %, and 119 of the 119 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, 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 60, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .300 WSM with the .308 | 168gr | Nosler RDF they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Alliant Reloder-22, 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.