Load Specifications
Load data in caliber .325 WSM with .323 | 196gr | Sellier & Bellot SPCE bullet and 99 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, Hodgdon Superformance 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.
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: 23"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 56,550 psi | 89% | 2644 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,651 psi | 87% | 2671 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,506 psi | 87% | 2720 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,608 psi | 87% | 2680 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,409 psi | 66% | 2572 fps | 96.4% |
| Accurate 4064 | <<locked>> | 90% | 55,651 psi | 87% | 2720 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,405 psi | 87% | 2802 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 55,753 psi | 87% | 2746 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 56,710 psi | 89% | 2746 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,795 psi | 86% | 2700 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,912 psi | 88% | 2674 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,550 psi | 87% | 2864 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,884 psi | 89% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,537 psi | 90% | 2792 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,463 psi | 88% | 2858 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,128 psi | 85% | 2838 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,495 psi | 63% | 2605 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,252 psi | 71% | 2759 fps | 98.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,651 psi | 87% | 2766 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 53,954 psi | 85% | 2736 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,537 psi | 90% | 2759 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,260 psi | 88% | 2680 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,696 psi | 90% | 2776 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,202 psi | 88% | 2825 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 54,578 psi | 86% | 2677 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 54,955 psi | 86% | 2749 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 94% | 56,318 psi | 88% | 2825 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 98% | 56,695 psi | 89% | 2785 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 86% | 56,304 psi | 88% | 2756 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,837 psi | 83% | 2736 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,985 psi | 88% | 2792 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,998 psi | 86% | 2831 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,766 psi | 56% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,318 psi | 88% | 2743 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 54,897 psi | 86% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,419 psi | 87% | 2720 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 92% | 54,824 psi | 86% | 2694 fps | 97.9% |
| IMR 4350 | <<locked>> | 98% | 54,462 psi | 85% | 2736 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,956 psi | 88% | 2736 fps | 98% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,661 psi | 78% | 2700 fps | 99.3% |
| IMR 4895 | <<locked>> | 88% | 55,288 psi | 87% | 2769 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 54,795 psi | 86% | 2700 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,811 psi | 87% | 2726 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,303 psi | 87% | 2677 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,043 psi | 88% | 2723 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,376 psi | 87% | 2733 fps | 99% |
| Lovex S070 | <<locked>> | 98% | 56,318 psi | 88% | 2766 fps | 98.4% |
| Norma 201 | <<locked>> | 86% | 54,621 psi | 86% | 2694 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,158 psi | 86% | 2697 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,739 psi | 89% | 2779 fps | 100% |
| Norma 204 | <<locked>> | 98% | 54,810 psi | 86% | 2776 fps | 96.2% |
| Norma URP | <<locked>> | 98% | 54,331 psi | 85% | 2789 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 57,435 psi | 90% | 2805 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 56,666 psi | 89% | 2838 fps | 99% |
| Ramshot TAC | <<locked>> | 84% | 54,998 psi | 86% | 2720 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,592 psi | 86% | 2736 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,405 psi | 87% | 2700 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,216 psi | 57% | 1703 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,609 psi | 90% | 2723 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,216 psi | 87% | 2733 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,505 psi | 85% | 2805 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 57,667 psi | 90% | 2887 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,984 psi | 86% | 2822 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,621 psi | 86% | 2854 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 84% | 55,564 psi | 87% | 2674 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,940 psi | 86% | 2690 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,638 psi | 90% | 2779 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,537 psi | 90% | 2759 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,376 psi | 87% | 2733 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,811 psi | 87% | 2726 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,043 psi | 88% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,318 psi | 88% | 2766 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,564 psi | 87% | 2785 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,174 psi | 90% | 2749 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,215 psi | 85% | 2720 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,956 psi | 88% | 2635 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,275 psi | 88% | 2635 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,593 psi | 87% | 2687 fps | 98% |
| Somchem S321 | <<locked>> | 82% | 55,941 psi | 88% | 2730 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,434 psi | 87% | 2631 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,782 psi | 89% | 2743 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,273 psi | 85% | 2726 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,402 psi | 82% | 2792 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,718 psi | 76% | 2677 fps | 96.2% |
| Unknown powder | <<locked>> | 96% | 55,463 psi | 87% | 2799 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 82% | 55,724 psi | 87% | 2595 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,217 psi | 88% | 2618 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,984 psi | 86% | 2661 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,564 psi | 87% | 2674 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,738 psi | 87% | 2707 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,913 psi | 89% | 2785 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 55,201 psi | 87% | 2700 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,276 psi | 90% | 2720 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,811 psi | 87% | 2789 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,541 psi | 70% | 2677 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,217 psi | 90% | 2766 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,811 psi | 87% | 2753 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,318 psi | 88% | 2825 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,274 psi | 57% | 2612 fps | 99.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 50,154 psi | 79% | 2556 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,004 psi | 67% | 2490 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,472 psi | 76% | 2621 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 45,759 psi | 72% | 2523 fps | 95.2% |
| Accurate 3100 | <<locked>> | 98% | 39,653 psi | 62% | 2520 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 40,683 psi | 64% | 2487 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 34,287 psi | 54% | 2421 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 46,195 psi | 72% | 2595 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 39,204 psi | 61% | 2448 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,269 psi | 76% | 2598 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,023 psi | 77% | 2585 fps | 100% |
| Alliant Power Pro 2000-MR | 56.8 gr | 80% | 42,177 psi | 66% | 2631 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,001 psi | 61% | 2470 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,872 psi | 66% | 2533 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,360 psi | 54% | 2434 fps | 95.8% |
| Alliant Reloder-17 | 55.9 gr | 80% | 33,721 psi | 53% | 2444 fps | 97.4% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,820 psi | 47% | 2343 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 94% | 36,666 psi | 57% | 2572 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,556 psi | 71% | 2602 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 38,827 psi | 61% | 2480 fps | 99.1% |
| Bofors RP7 | <<locked>> | 88% | 44,991 psi | 71% | 2556 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,937 psi | 78% | 2589 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,340 psi | 74% | 2625 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,330 psi | 82% | 2766 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 80% | 51,213 psi | 80% | 2631 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,624 psi | 62% | 2484 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 86% | 42,743 psi | 67% | 2595 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 92% | 47,166 psi | 74% | 2628 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,615 psi | 73% | 2605 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,733 psi | 47% | 2287 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,321 psi | 63% | 2536 fps | 99.3% |
| Hodgdon Superformance | 66.5 gr | 90% | 44,498 psi | 70% | 2651 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 42% | 1486 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,553 psi | 65% | 2500 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 42,641 psi | 67% | 2533 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,653 psi | 61% | 2431 fps | 97.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 43,250 psi | 68% | 2497 fps | 95.4% |
| IMR 4350 | <<locked>> | 92% | 45,150 psi | 71% | 2579 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,758 psi | 69% | 2533 fps | 95.5% |
| IMR 4831 | <<locked>> | 88% | 34,156 psi | 54% | 2405 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 42,888 psi | 67% | 2562 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 48,269 psi | 76% | 2598 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,498 psi | 71% | 2575 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,166 psi | 72% | 2536 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 41,365 psi | 65% | 2490 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 38,464 psi | 60% | 2434 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 41,278 psi | 65% | 2510 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 45,411 psi | 71% | 2549 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,542 psi | 71% | 2552 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,278 psi | 65% | 2523 fps | 98.8% |
| Norma 204 | <<locked>> | 96% | 51,474 psi | 81% | 2723 fps | 95.5% |
| Norma URP | <<locked>> | 84% | 34,563 psi | 54% | 2425 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 40,901 psi | 64% | 2536 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 40,828 psi | 64% | 2566 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 48,240 psi | 76% | 2612 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,892 psi | 75% | 2631 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,982 psi | 81% | 2648 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,934 psi | 42% | 1522 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,172 psi | 85% | 2677 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,987 psi | 63% | 2467 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,425 psi | 70% | 2638 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,897 psi | 56% | 2510 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,026 psi | 53% | 2438 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 36,230 psi | 57% | 2493 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 49,240 psi | 77% | 2582 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,120 psi | 68% | 2503 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 36,477 psi | 57% | 2425 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 44,991 psi | 71% | 2556 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,464 psi | 60% | 2434 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,498 psi | 71% | 2575 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,365 psi | 65% | 2490 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 41,278 psi | 65% | 2510 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,550 psi | 59% | 2474 fps | 97.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,615 psi | 73% | 2589 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,788 psi | 70% | 2569 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,528 psi | 73% | 2500 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,827 psi | 61% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,989 psi | 67% | 2484 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 52,388 psi | 82% | 2680 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,296 psi | 73% | 2503 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,398 psi | 73% | 2585 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 37,405 psi | 59% | 2431 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 27,122 psi | 43% | 2267 fps | 96.1% |
| Somchem S385 | <<locked>> | 98% | 45,469 psi | 71% | 2621 fps | 95.4% |
| Unknown powder | <<locked>> | 82% | 35,027 psi | 55% | 2421 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 52,417 psi | 82% | 2552 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,905 psi | 74% | 2490 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,699 psi | 67% | 2484 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,178 psi | 68% | 2490 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,404 psi | 55% | 2365 fps | 99% |
| Vihtavuori N160 | <<locked>> | 82% | 33,678 psi | 53% | 2372 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 48,486 psi | 76% | 2598 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,698 psi | 65% | 2484 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,462 psi | 56% | 2425 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 90% | 32,111 psi | 50% | 2415 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,430 psi | 49% | 2300 fps | 96.7% |
| Winchester 748 | <<locked>> | 80% | 52,156 psi | 82% | 2700 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 42,743 psi | 67% | 2595 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 94% | 29,936 psi | 47% | 2421 fps | 96.1% |
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 99 powders for .325 WSM loaded with the .323 | 196gr | Sellier & Bellot SPCE. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,887 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,887 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 196.0 gr projectile in 0.323" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-16, Alliant Reloder-23 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .325 WSM with the .323 | 196gr | Sellier & Bellot SPCE 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.