Load Specifications
Bullet Manufacturer:Prvi Partizan
Bullet Weight:190 gr
Bullet Diameter:0.311"
Bullet Length:<<locked>>
Caliber:.300 WSM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:81.3 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:13.0
Load data in caliber .300 WSM with .311 | 190gr | Prvi Partizan FMJ BT bullet and 105 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-16.
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 2495 | <<locked>> | 84% | 54,708 psi | 86% | 2621 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,580 psi | 90% | 2694 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,066 psi | 77% | 2667 fps | 99% |
| Accurate 4064 | <<locked>> | 86% | 55,027 psi | 86% | 2674 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,114 psi | 86% | 2772 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 54,302 psi | 85% | 2697 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,390 psi | 87% | 2703 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,507 psi | 89% | 2812 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,507 psi | 89% | 2694 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,230 psi | 85% | 2822 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,825 psi | 87% | 2723 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,391 psi | 88% | 2749 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,912 psi | 88% | 2825 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 57,246 psi | 90% | 2851 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,361 psi | 87% | 2799 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,892 psi | 77% | 2743 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,151 psi | 72% | 2687 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,495 psi | 63% | 2608 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,373 psi | 82% | 2867 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 57,725 psi | 90% | 2769 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 44,918 psi | 70% | 2667 fps | 96% |
| Bofors RP3 | <<locked>> | 88% | 56,797 psi | 89% | 2743 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,892 psi | 77% | 2743 fps | 97.1% |
| Bofors RP7 | <<locked>> | 92% | 56,130 psi | 88% | 2723 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,217 psi | 88% | 2723 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 57,334 psi | 90% | 2759 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 55,361 psi | 87% | 2792 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 94% | 55,796 psi | 87% | 2756 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 82% | 54,911 psi | 86% | 2707 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,289 psi | 88% | 2749 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,085 psi | 86% | 2746 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,969 psi | 85% | 2805 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,100 psi | 57% | 1660 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,100 psi | 86% | 2697 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,725 psi | 90% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,551 psi | 90% | 2723 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,637 psi | 89% | 2707 fps | 99.3% |
| IMR 4350 | <<locked>> | 96% | 56,927 psi | 89% | 2756 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,665 psi | 86% | 2703 fps | 99% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,362 psi | 88% | 2772 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 54,273 psi | 85% | 2726 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,072 psi | 88% | 2743 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,808 psi | 81% | 2779 fps | 96.1% |
| IMR 8208 XBR | <<locked>> | 82% | 56,507 psi | 89% | 2694 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,476 psi | 85% | 2674 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,666 psi | 89% | 2671 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,085 psi | 86% | 2684 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,520 psi | 85% | 2700 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 55,564 psi | 87% | 2736 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,785 psi | 64% | 2526 fps | 97.6% |
| Norma 201 | <<locked>> | 84% | 56,449 psi | 88% | 2690 fps | 100% |
| Norma 202 | <<locked>> | 84% | 57,174 psi | 90% | 2687 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,608 psi | 87% | 2736 fps | 100% |
| Norma 204 | <<locked>> | 96% | 57,624 psi | 90% | 2808 fps | 98.2% |
| Norma MRPᴾ | <<locked>> | 100% | 51,779 psi | 81% | 2822 fps | 98.9% |
| Norma URP | <<locked>> | 96% | 57,725 psi | 90% | 2808 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 56,260 psi | 88% | 2759 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,230 psi | 87% | 2844 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 96% | 56,144 psi | 88% | 2808 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,935 psi | 75% | 2703 fps | 97.4% |
| Ramshot TAC | <<locked>> | 82% | 56,492 psi | 89% | 2723 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,565 psi | 89% | 2736 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,883 psi | 58% | 1703 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 57,203 psi | 90% | 2743 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 57,406 psi | 90% | 2815 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,971 psi | 89% | 2844 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,781 psi | 86% | 2792 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 57,580 psi | 90% | 2877 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 57,246 psi | 90% | 2664 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 57,159 psi | 90% | 2694 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,681 psi | 89% | 2736 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,563 psi | 86% | 2730 fps | 96.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,462 psi | 85% | 2785 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 92% | 56,130 psi | 88% | 2723 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,520 psi | 85% | 2700 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,476 psi | 85% | 2674 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,085 psi | 86% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,564 psi | 87% | 2736 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,665 psi | 86% | 2746 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,274 psi | 87% | 2703 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,333 psi | 88% | 2723 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,406 psi | 90% | 2621 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,824 psi | 86% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,302 psi | 85% | 2654 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 2779 fps | 98% |
| Somchem S335 | <<locked>> | 84% | 57,043 psi | 89% | 2621 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,969 psi | 86% | 2690 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,753 psi | 89% | 2733 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 56,347 psi | 88% | 2723 fps | 96.2% |
| Somchem S365 | <<locked>> | 98% | 56,492 psi | 89% | 2808 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,230 psi | 87% | 2762 fps | 98.8% |
| Unknown powder | <<locked>> | 92% | 54,650 psi | 86% | 2762 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 86% | 57,493 psi | 90% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 57,406 psi | 90% | 2651 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,942 psi | 89% | 2661 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,752 psi | 86% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,317 psi | 87% | 2736 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,934 psi | 72% | 2602 fps | 96.8% |
| Vihtavuori N540 | <<locked>> | 86% | 56,623 psi | 89% | 2687 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,492 psi | 87% | 2779 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,488 psi | 81% | 2759 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,869 psi | 88% | 2723 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,361 psi | 87% | 2792 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,466 psi | 65% | 2730 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,638 psi | 90% | 2785 fps | 98.3% |
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% | 48,167 psi | 75% | 2533 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 41,495 psi | 65% | 2434 fps | 95.8% |
| Accurate 3100 | <<locked>> | 90% | 35,070 psi | 55% | 2408 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 45,585 psi | 71% | 2536 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,185 psi | 54% | 2398 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 51,010 psi | 80% | 2651 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,410 psi | 68% | 2513 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 43,497 psi | 68% | 2592 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,084 psi | 83% | 2648 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,297 psi | 74% | 2710 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,656 psi | 68% | 2536 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,572 psi | 73% | 2598 fps | 99.9% |
| Alliant Reloder-16 | 50.3 gr | 80% | 33,910 psi | 53% | 2411 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,927 psi | 59% | 2530 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 42,902 psi | 67% | 2585 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 42,902 psi | 67% | 2631 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,208 psi | 41% | 2228 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 94% | 33,562 psi | 53% | 2441 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 86% | 31,879 psi | 50% | 2444 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,502 psi | 79% | 2664 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 42,134 psi | 66% | 2615 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 43,729 psi | 69% | 2546 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 42,902 psi | 67% | 2631 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 38,841 psi | 61% | 2421 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,779 psi | 83% | 2677 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,077 psi | 69% | 2549 fps | 99% |
| Hodgdon H414 | <<locked>> | 80% | 39,421 psi | 62% | 2510 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 84% | 41,017 psi | 64% | 2500 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 51,532 psi | 81% | 2657 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,299 psi | 49% | 2313 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,194 psi | 71% | 2595 fps | 100% |
| Hodgdon Superformance | 58.6 gr | 82% | 37,739 psi | 59% | 2503 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,021 psi | 42% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,701 psi | 72% | 2552 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 47,659 psi | 75% | 2575 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,511 psi | 67% | 2487 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,974 psi | 66% | 2457 fps | 96.8% |
| IMR 4350 | <<locked>> | 84% | 39,204 psi | 61% | 2451 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,176 psi | 63% | 2451 fps | 96.2% |
| IMR 4831 | <<locked>> | 80% | 30,023 psi | 47% | 2283 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 47,747 psi | 75% | 2625 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 49,414 psi | 77% | 2638 fps | 95% |
| IMR 7828 SSC | <<locked>> | 98% | 48,254 psi | 76% | 2717 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 53,084 psi | 83% | 2648 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 51,053 psi | 80% | 2625 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,299 psi | 79% | 2582 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,759 psi | 72% | 2543 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,724 psi | 59% | 2402 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 35,853 psi | 56% | 2382 fps | 95.1% |
| Lovex S071 | <<locked>> | 94% | 33,605 psi | 53% | 2375 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 49,995 psi | 78% | 2598 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,560 psi | 79% | 2598 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,919 psi | 72% | 2585 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 44,092 psi | 69% | 2585 fps | 95.4% |
| Norma MRP | <<locked>> | 90% | 36,956 psi | 58% | 2533 fps | 95% |
| Norma URP | <<locked>> | 80% | 34,171 psi | 54% | 2395 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 80% | 46,021 psi | 72% | 2605 fps | 99.9% |
| Ramshot Grand | <<locked>> | 96% | 47,558 psi | 75% | 2713 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 82% | 35,476 psi | 56% | 2434 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 96% | 41,075 psi | 64% | 2575 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 52,910 psi | 83% | 2671 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,910 psi | 83% | 2684 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,412 psi | 43% | 1519 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,353 psi | 70% | 2536 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,009 psi | 78% | 2707 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,350 psi | 63% | 2582 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,910 psi | 53% | 2418 fps | 96.9% |
| ReloadSwiss RS 70 | 55 gr | 80% | 33,359 psi | 52% | 2418 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 54,012 psi | 85% | 2621 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,688 psi | 75% | 2556 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,002 psi | 64% | 2490 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 48,138 psi | 75% | 2625 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 92% | 41,872 psi | 66% | 2569 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 38,841 psi | 61% | 2421 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,724 psi | 59% | 2402 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,053 psi | 80% | 2625 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,759 psi | 72% | 2543 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 35,853 psi | 56% | 2382 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,105 psi | 66% | 2543 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,880 psi | 81% | 2654 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,458 psi | 78% | 2625 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,908 psi | 80% | 2536 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,830 psi | 67% | 2411 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,840 psi | 58% | 2349 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,466 psi | 65% | 2562 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 50,633 psi | 79% | 2536 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,372 psi | 81% | 2641 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,626 psi | 65% | 2493 fps | 99.8% |
| Somchem S361 | <<locked>> | 96% | 52,939 psi | 83% | 2671 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 30,748 psi | 48% | 2356 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 39,900 psi | 63% | 2503 fps | 95.6% |
| Unknown powder | <<locked>> | 80% | 37,043 psi | 58% | 2451 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 80% | 48,124 psi | 75% | 2477 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,601 psi | 75% | 2523 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,239 psi | 74% | 2526 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,679 psi | 56% | 2352 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 37,159 psi | 58% | 2428 fps | 98% |
| Vihtavuori N165 | <<locked>> | 96% | 40,495 psi | 63% | 2503 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 46,920 psi | 74% | 2549 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,594 psi | 59% | 2467 fps | 98% |
| Vihtavuori N555 | <<locked>> | 82% | 28,587 psi | 45% | 2303 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,925 psi | 55% | 2372 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 39,421 psi | 62% | 2510 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,743 psi | 39% | 2247 fps | 95% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,381 psi | 68% | 2562 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 105 powders for .300 WSM loaded with the .311 | 190gr | Prvi Partizan FMJ BT. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,877 fps; across all powders the maximum-charge window runs from 1,660 fps to 2,877 fps. Accurate 3100 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.311" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 70, Hodgdon Superformance, Alliant Reloder-16 rank at the top here: for .300 WSM with the .311 | 190gr | Prvi Partizan FMJ BT 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.