Load Specifications
Load data in caliber .300 WSM with .308 | 170gr | Sako Blade 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, Alliant Power Pro 2000-MR 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.
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 2015 | <<locked>> | 84% | 54,752 psi | 86% | 2733 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,681 psi | 89% | 2808 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,579 psi | 89% | 2799 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,464 psi | 90% | 2864 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 57,595 psi | 90% | 2818 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 40,393 psi | 63% | 2644 fps | 95.9% |
| Accurate 4064 | <<locked>> | 92% | 56,579 psi | 89% | 2848 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,116 psi | 90% | 2943 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 88% | 57,580 psi | 90% | 2890 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 55,172 psi | 86% | 2838 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,434 psi | 88% | 2838 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,580 psi | 90% | 2808 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,595 psi | 90% | 3015 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,172 psi | 86% | 2861 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,667 psi | 90% | 2779 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,550 psi | 87% | 2881 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,839 psi | 86% | 2949 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,014 psi | 88% | 2986 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,783 psi | 61% | 2677 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,555 psi | 68% | 2838 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,725 psi | 90% | 2910 fps | 99.9% |
| Bofors RP3 | <<locked>> | 92% | 55,535 psi | 87% | 2874 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,825 psi | 87% | 2848 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,853 psi | 86% | 2772 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,130 psi | 88% | 2871 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,447 psi | 85% | 2917 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 84% | 56,695 psi | 89% | 2822 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,565 psi | 89% | 2890 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 54,230 psi | 85% | 2910 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 98% | 54,926 psi | 86% | 2874 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 86% | 54,476 psi | 85% | 2848 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,010 psi | 80% | 2822 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 57,711 psi | 90% | 2933 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,392 psi | 90% | 2986 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,462 psi | 56% | 1736 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,766 psi | 86% | 2835 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 56,594 psi | 89% | 2854 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,246 psi | 90% | 2858 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,768 psi | 89% | 2835 fps | 98.3% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,275 psi | 88% | 2874 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,273 psi | 85% | 2825 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,659 psi | 75% | 2782 fps | 99.1% |
| IMR 4895 | <<locked>> | 90% | 56,985 psi | 89% | 2910 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,434 psi | 88% | 2838 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,724 psi | 89% | 2822 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,464 psi | 90% | 2864 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,087 psi | 89% | 2818 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 57,667 psi | 90% | 2864 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,927 psi | 89% | 2867 fps | 99.2% |
| Lovex S070 | <<locked>> | 98% | 54,520 psi | 85% | 2854 fps | 98.2% |
| Norma 201 | <<locked>> | 88% | 56,043 psi | 88% | 2831 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,811 psi | 89% | 2835 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,723 psi | 86% | 2867 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 56,927 psi | 89% | 2923 fps | 96.7% |
| Norma URPᴾ | <<locked>> | 100% | 56,014 psi | 88% | 2930 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 90% | 55,550 psi | 87% | 2897 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,810 psi | 86% | 2927 fps | 98.8% |
| Ramshot TAC | <<locked>> | 86% | 57,087 psi | 89% | 2864 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,536 psi | 89% | 2877 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,421 psi | 90% | 2841 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,882 psi | 56% | 1775 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,825 psi | 87% | 2815 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,072 psi | 89% | 2874 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,333 psi | 88% | 2949 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,782 psi | 87% | 2982 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,913 psi | 89% | 2969 fps | 99.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,695 psi | 89% | 3002 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 86% | 56,942 psi | 89% | 2808 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,463 psi | 88% | 2828 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,390 psi | 87% | 2864 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,825 psi | 87% | 2848 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,927 psi | 89% | 2867 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,464 psi | 90% | 2864 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,667 psi | 90% | 2864 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,520 psi | 85% | 2854 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,638 psi | 90% | 2930 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,390 psi | 87% | 2841 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,043 psi | 88% | 2861 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,273 psi | 85% | 2723 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,694 psi | 86% | 2723 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,624 psi | 90% | 2828 fps | 98.3% |
| Somchem S321 | <<locked>> | 82% | 54,056 psi | 85% | 2818 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 57,014 psi | 89% | 2766 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,853 psi | 86% | 2828 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 55,840 psi | 88% | 2864 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,488 psi | 79% | 2881 fps | 100% |
| Unknown powder | <<locked>> | 98% | 57,116 psi | 90% | 2936 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 84% | 56,362 psi | 88% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,377 psi | 90% | 2746 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,478 psi | 89% | 2792 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,376 psi | 88% | 2799 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 57,246 psi | 90% | 2844 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,041 psi | 85% | 2854 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 56,318 psi | 88% | 2844 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,376 psi | 88% | 2831 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,360 psi | 85% | 2904 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,612 psi | 67% | 2753 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,448 psi | 87% | 2854 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,882 psi | 84% | 2841 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,230 psi | 85% | 2910 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,563 psi | 54% | 2674 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,493 psi | 90% | 2890 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% | 48,254 psi | 76% | 2641 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,982 psi | 83% | 2759 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,553 psi | 64% | 2562 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,514 psi | 73% | 2703 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 47,210 psi | 74% | 2657 fps | 95.6% |
| Accurate 3100 | <<locked>> | 98% | 37,521 psi | 59% | 2585 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 38,363 psi | 60% | 2556 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,329 psi | 51% | 2484 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 44,614 psi | 70% | 2680 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 37,855 psi | 59% | 2526 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,775 psi | 73% | 2687 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,195 psi | 74% | 2671 fps | 100% |
| Alliant Power Pro 2000-MR | 53.3 gr | 80% | 40,683 psi | 64% | 2710 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,478 psi | 59% | 2549 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,433 psi | 85% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,248 psi | 63% | 2612 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,938 psi | 52% | 2503 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,184 psi | 50% | 2513 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,095 psi | 47% | 2457 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,114 psi | 55% | 2641 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,903 psi | 69% | 2684 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 36,854 psi | 58% | 2549 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 46,137 psi | 72% | 2687 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,370 psi | 76% | 2674 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,672 psi | 72% | 2710 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,560 psi | 79% | 2858 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 80% | 49,647 psi | 78% | 2720 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,913 psi | 59% | 2556 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 88% | 44,179 psi | 69% | 2736 fps | 95.9% |
| Hodgdon H4350 | <<locked>> | 94% | 48,602 psi | 76% | 2766 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 45,034 psi | 71% | 2690 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,253 psi | 44% | 2346 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,682 psi | 61% | 2612 fps | 99.1% |
| Hodgdon Superformance | 63.7 gr | 92% | 45,963 psi | 72% | 2789 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,179 psi | 41% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,118 psi | 63% | 2579 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 40,886 psi | 64% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,072 psi | 58% | 2503 fps | 97.5% |
| IMR 4166 Enduron | <<locked>> | 84% | 41,916 psi | 66% | 2575 fps | 95.1% |
| IMR 4350 | <<locked>> | 94% | 46,369 psi | 73% | 2713 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,395 psi | 66% | 2615 fps | 95.1% |
| IMR 4831 | <<locked>> | 88% | 32,474 psi | 51% | 2470 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 41,278 psi | 65% | 2644 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 46,775 psi | 73% | 2687 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 52,750 psi | 83% | 2769 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,598 psi | 68% | 2654 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,585 psi | 70% | 2615 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 39,508 psi | 62% | 2562 fps | 99.3% |
| Lovex S065 | <<locked>> | 84% | 36,854 psi | 58% | 2507 fps | 95% |
| Lovex S070 | <<locked>> | 90% | 42,119 psi | 66% | 2638 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 43,482 psi | 68% | 2628 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 44,019 psi | 69% | 2638 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,639 psi | 62% | 2602 fps | 98.5% |
| Norma 204 | <<locked>> | 96% | 49,821 psi | 78% | 2808 fps | 95.1% |
| Norma URP | <<locked>> | 84% | 32,880 psi | 52% | 2490 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 39,363 psi | 62% | 2618 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 39,349 psi | 62% | 2644 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 46,644 psi | 73% | 2694 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,180 psi | 72% | 2713 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,560 psi | 79% | 2740 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,629 psi | 42% | 1585 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,504 psi | 82% | 2769 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,002 psi | 64% | 2595 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,453 psi | 67% | 2717 fps | 98.6% |
| ReloadSwiss RS 60 | 52.4 gr | 80% | 34,360 psi | 54% | 2582 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,606 psi | 54% | 2559 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,362 psi | 59% | 2628 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 47,340 psi | 74% | 2667 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,365 psi | 65% | 2582 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 34,809 psi | 55% | 2497 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 46,137 psi | 72% | 2687 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,854 psi | 58% | 2507 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,598 psi | 68% | 2654 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,508 psi | 62% | 2562 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 42,119 psi | 66% | 2638 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,824 psi | 56% | 2546 fps | 97.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,744 psi | 70% | 2664 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,076 psi | 68% | 2648 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,063 psi | 71% | 2585 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,434 psi | 59% | 2451 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,263 psi | 65% | 2556 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 50,575 psi | 79% | 2766 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,527 psi | 70% | 2585 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,701 psi | 70% | 2664 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 35,607 psi | 56% | 2500 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 25,657 psi | 40% | 2323 fps | 95.3% |
| Unknown powder | <<locked>> | 84% | 35,940 psi | 56% | 2552 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 49,792 psi | 78% | 2628 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,583 psi | 67% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,017 psi | 64% | 2566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,046 psi | 64% | 2566 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,385 psi | 48% | 2359 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 82% | 33,562 psi | 53% | 2470 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 49,356 psi | 77% | 2740 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,596 psi | 64% | 2582 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 34,055 psi | 53% | 2513 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 92% | 32,503 psi | 51% | 2533 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,052 psi | 47% | 2362 fps | 96.1% |
| Winchester 748 | <<locked>> | 80% | 50,343 psi | 79% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,179 psi | 69% | 2736 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,442 psi | 45% | 2474 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,490 psi | 84% | 2835 fps | 100% |
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 120 powders for .300 WSM loaded with the .308 | 170gr | Sako Blade. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,015 fps; across all powders the maximum-charge window runs from 1,736 fps to 3,015 fps. Accurate 3100 gives the best case fill at 100 %, and 120 of the 120 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:10.5 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, Hodgdon Superformance rank at the top here: for .300 WSM with the .308 | 170gr | Sako Blade they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.