Load Specifications
Load data in caliber .300 WSM with .308 | 200gr | Norma VULKAN 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 Reloder-26, 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 2495 | <<locked>> | 82% | 54,476 psi | 85% | 2552 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,058 psi | 89% | 2638 fps | 99.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,881 psi | 83% | 2667 fps | 99.8% |
| Accurate 4064 | <<locked>> | 84% | 54,882 psi | 86% | 2608 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,448 psi | 87% | 2713 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 57,305 psi | 90% | 2680 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,042 psi | 86% | 2641 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 56,347 psi | 88% | 2756 fps | 98.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,983 psi | 85% | 2753 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 53,998 psi | 85% | 2756 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,709 psi | 87% | 2661 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,970 psi | 88% | 2680 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,144 psi | 88% | 2766 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 57,638 psi | 90% | 2789 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,463 psi | 87% | 2746 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,765 psi | 83% | 2749 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,705 psi | 78% | 2684 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,381 psi | 68% | 2618 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 57,232 psi | 90% | 2874 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,261 psi | 90% | 2700 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,240 psi | 76% | 2674 fps | 97.6% |
| Bofors RP3 | <<locked>> | 86% | 56,449 psi | 88% | 2677 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,765 psi | 83% | 2749 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 55,985 psi | 88% | 2667 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 86% | 57,101 psi | 89% | 2697 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,288 psi | 87% | 2733 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 92% | 55,796 psi | 87% | 2703 fps | 98.9% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 49,792 psi | 78% | 2631 fps | 95.8% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,666 psi | 89% | 2736 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,579 psi | 89% | 2690 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,839 psi | 86% | 2680 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,453 psi | 67% | 2644 fps | 96.8% |
| Hodgdon Superformance | <<locked>> | 90% | 53,867 psi | 84% | 2746 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,463 psi | 57% | 1634 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,549 psi | 85% | 2628 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,406 psi | 90% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,203 psi | 90% | 2657 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,130 psi | 88% | 2644 fps | 99.6% |
| IMR 4350 | <<locked>> | 94% | 56,869 psi | 89% | 2700 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 57,667 psi | 90% | 2694 fps | 99.7% |
| IMR 4831 | <<locked>> | 98% | 56,579 psi | 89% | 2717 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 57,392 psi | 90% | 2707 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,811 psi | 87% | 2687 fps | 97.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,259 psi | 87% | 2785 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 82% | 57,725 psi | 90% | 2651 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 55,970 psi | 88% | 2605 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,665 psi | 86% | 2615 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 57,653 psi | 90% | 2687 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 55,347 psi | 87% | 2677 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,179 psi | 69% | 2533 fps | 98.8% |
| Norma 201 | <<locked>> | 82% | 55,956 psi | 88% | 2625 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,637 psi | 89% | 2618 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,259 psi | 87% | 2667 fps | 100% |
| Norma 204 | <<locked>> | 94% | 57,595 psi | 90% | 2749 fps | 98.8% |
| Norma MRPᴾ | <<locked>> | 100% | 55,941 psi | 88% | 2828 fps | 99.7% |
| Norma URP | <<locked>> | 94% | 57,595 psi | 90% | 2746 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,898 psi | 88% | 2694 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,071 psi | 86% | 2795 fps | 98% |
| Ramshot Hunter | <<locked>> | 94% | 56,391 psi | 88% | 2753 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,590 psi | 81% | 2717 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,072 psi | 58% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,869 psi | 89% | 2680 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,203 psi | 90% | 2749 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 57,087 psi | 89% | 2779 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,230 psi | 87% | 2736 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 57,406 psi | 90% | 2815 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,308 psi | 66% | 2641 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 84% | 56,608 psi | 89% | 2625 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,565 psi | 89% | 2671 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,476 psi | 85% | 2677 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 98% | 54,650 psi | 86% | 2730 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 90% | 55,985 psi | 88% | 2667 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 57,653 psi | 90% | 2687 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 57,725 psi | 90% | 2651 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 54,665 psi | 86% | 2615 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,347 psi | 87% | 2677 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,621 psi | 86% | 2684 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,782 psi | 87% | 2657 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,927 psi | 89% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 57,682 psi | 90% | 2559 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 57,421 psi | 90% | 2644 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,157 psi | 85% | 2726 fps | 98.7% |
| Somchem S335 | <<locked>> | 82% | 56,405 psi | 88% | 2552 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,594 psi | 89% | 2667 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 56,101 psi | 88% | 2671 fps | 97% |
| Somchem S365 | <<locked>> | 96% | 57,029 psi | 89% | 2749 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,376 psi | 87% | 2707 fps | 99.3% |
| Unknown powder | <<locked>> | 90% | 54,853 psi | 86% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 56,855 psi | 89% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 57,029 psi | 89% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,405 psi | 88% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,810 psi | 86% | 2608 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,201 psi | 87% | 2674 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,269 psi | 77% | 2605 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 84% | 56,115 psi | 88% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,680 psi | 87% | 2720 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,883 psi | 88% | 2756 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 53,026 psi | 83% | 2772 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,854 psi | 88% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,288 psi | 87% | 2733 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,889 psi | 70% | 2743 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 57,450 psi | 90% | 2730 fps | 98.9% |
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 2495 | <<locked>> | 80% | 51,068 psi | 80% | 2510 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,034 psi | 69% | 2434 fps | 97.3% |
| Accurate 3100 | <<locked>> | 84% | 30,879 psi | 48% | 2260 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 48,385 psi | 76% | 2516 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,898 psi | 58% | 2405 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 80% | 53,896 psi | 84% | 2631 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,701 psi | 72% | 2497 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,712 psi | 64% | 2487 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 96% | 47,224 psi | 74% | 2638 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,343 psi | 79% | 2700 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,195 psi | 72% | 2520 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,385 psi | 77% | 2585 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,027 psi | 56% | 2411 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,770 psi | 64% | 2530 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,335 psi | 63% | 2484 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,393 psi | 63% | 2530 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,368 psi | 41% | 2188 fps | 96.7% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,676 psi | 50% | 2349 fps | 95.8% |
| Alliant Reloder-26 | 58 gr | 82% | 29,892 psi | 47% | 2343 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,621 psi | 84% | 2651 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 39,842 psi | 62% | 2516 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 46,630 psi | 73% | 2536 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,393 psi | 63% | 2530 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 40,988 psi | 64% | 2415 fps | 96.7% |
| Hodgdon H380 | <<locked>> | 80% | 46,804 psi | 73% | 2543 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 42,090 psi | 66% | 2513 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 38,363 psi | 60% | 2395 fps | 95.1% |
| Hodgdon H4831 | <<locked>> | 98% | 46,644 psi | 73% | 2579 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,516 psi | 78% | 2628 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,620 psi | 53% | 2313 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,080 psi | 75% | 2582 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,885 psi | 63% | 2589 fps | 95.9% |
| Hodgdon Superformance | 58.4 gr | 80% | 37,652 psi | 59% | 2454 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,325 psi | 43% | 1460 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,385 psi | 76% | 2539 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 50,604 psi | 79% | 2552 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,107 psi | 71% | 2477 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,106 psi | 69% | 2451 fps | 98% |
| IMR 4350 | <<locked>> | 80% | 36,695 psi | 57% | 2349 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,279 psi | 66% | 2441 fps | 97.5% |
| IMR 4831 | <<locked>> | 80% | 32,155 psi | 50% | 2283 fps | 97.4% |
| IMR 4895 | <<locked>> | 80% | 50,662 psi | 79% | 2612 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 46,398 psi | 73% | 2536 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 94% | 45,223 psi | 71% | 2615 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 80% | 54,201 psi | 85% | 2605 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,678 psi | 83% | 2559 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,254 psi | 76% | 2523 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,885 psi | 63% | 2398 fps | 98.2% |
| Lovex S070 | <<locked>> | 80% | 38,159 psi | 60% | 2382 fps | 96.7% |
| Lovex S071 | <<locked>> | 90% | 32,053 psi | 50% | 2287 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 52,576 psi | 82% | 2579 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,229 psi | 83% | 2572 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,776 psi | 76% | 2572 fps | 100% |
| Norma 204 | <<locked>> | 84% | 41,176 psi | 65% | 2480 fps | 95.5% |
| Norma MRP | <<locked>> | 86% | 34,708 psi | 54% | 2431 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 36,695 psi | 57% | 2398 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 80% | 48,907 psi | 77% | 2592 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 44,324 psi | 69% | 2608 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 35,534 psi | 56% | 2385 fps | 96.6% |
| Ramshot Magnum | <<locked>> | 92% | 38,334 psi | 60% | 2474 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 43% | 1493 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,891 psi | 73% | 2530 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,345 psi | 84% | 2694 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,337 psi | 68% | 2579 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,535 psi | 57% | 2421 fps | 98.3% |
| ReloadSwiss RS 70 | 56.1 gr | 80% | 35,520 psi | 56% | 2425 fps | 97.7% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,753 psi | 58% | 2510 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 50,227 psi | 79% | 2536 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,787 psi | 69% | 2484 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,063 psi | 71% | 2523 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 88% | 39,421 psi | 62% | 2467 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 40,988 psi | 64% | 2415 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,885 psi | 63% | 2398 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 54,201 psi | 85% | 2605 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 48,254 psi | 76% | 2523 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,159 psi | 60% | 2382 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,860 psi | 70% | 2533 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,286 psi | 82% | 2608 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,432 psi | 84% | 2510 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,165 psi | 71% | 2392 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,073 psi | 61% | 2346 fps | 96.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,044 psi | 61% | 2464 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 53,113 psi | 83% | 2510 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,077 psi | 69% | 2480 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,168 psi | 77% | 2566 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 33,185 psi | 52% | 2359 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 37,492 psi | 59% | 2402 fps | 95.7% |
| Unknown powder | <<locked>> | 80% | 39,610 psi | 62% | 2451 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 80% | 50,589 psi | 79% | 2454 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,386 psi | 79% | 2497 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,806 psi | 78% | 2503 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,884 psi | 59% | 2343 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,697 psi | 62% | 2425 fps | 99% |
| Vihtavuori N165 | <<locked>> | 92% | 38,087 psi | 60% | 2405 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 49,647 psi | 78% | 2530 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,118 psi | 63% | 2464 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 28,892 psi | 45% | 2257 fps | 96.8% |
| Vihtavuori N560 | <<locked>> | 96% | 46,441 psi | 73% | 2657 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,202 psi | 58% | 2369 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 42,090 psi | 66% | 2513 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,293 psi | 37% | 2159 fps | 95.2% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,364 psi | 63% | 2454 fps | 95.4% |
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 110 powders for .300 WSM loaded with the .308 | 200gr | Norma VULKAN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,874 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,874 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 47–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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. Alliant Reloder-26, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .300 WSM with the .308 | 200gr | Norma VULKAN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.