Load Specifications
Bullet Manufacturer:Sellier & Bellot
Bullet Weight:180 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:1:16.5
Load data in caliber .300 WSM with .311 | 180gr | Sellier & Bellot SPRN bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 55,898 psi | 88% | 2726 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,406 psi | 90% | 2795 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,430 psi | 79% | 2776 fps | 99.1% |
| Accurate 4064 | <<locked>> | 86% | 56,043 psi | 88% | 2779 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 56,608 psi | 89% | 2884 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,405 psi | 87% | 2808 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,362 psi | 88% | 2812 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 54,056 psi | 85% | 2867 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,595 psi | 90% | 2805 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,521 psi | 87% | 2933 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,043 psi | 89% | 2835 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 57,363 psi | 90% | 2858 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 57,377 psi | 90% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,984 psi | 86% | 2913 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,652 psi | 89% | 2910 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,314 psi | 79% | 2851 fps | 97.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,369 psi | 74% | 2792 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,539 psi | 65% | 2713 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,288 psi | 85% | 2986 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,013 psi | 86% | 2822 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,166 psi | 72% | 2776 fps | 96.1% |
| Bofors RP3 | <<locked>> | 86% | 54,186 psi | 85% | 2799 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,314 psi | 79% | 2851 fps | 97.2% |
| Bofors RP7 | <<locked>> | 92% | 57,464 psi | 90% | 2835 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 57,406 psi | 90% | 2831 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 54,853 psi | 86% | 2818 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 55,274 psi | 87% | 2881 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 90% | 55,201 psi | 87% | 2838 fps | 98.2% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 55,405 psi | 87% | 2858 fps | 96% |
| Hodgdon H4895 | <<locked>> | 82% | 55,999 psi | 88% | 2815 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 57,653 psi | 90% | 2861 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,014 psi | 88% | 2851 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,347 psi | 87% | 2920 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,303 psi | 57% | 1736 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,826 psi | 89% | 2815 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,579 psi | 89% | 2792 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,999 psi | 88% | 2795 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,216 psi | 87% | 2779 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 54,752 psi | 86% | 2815 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,550 psi | 87% | 2808 fps | 99% |
| IMR 4831 | <<locked>> | 96% | 56,797 psi | 89% | 2871 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,187 psi | 86% | 2831 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 57,290 psi | 90% | 2854 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 82% | 57,595 psi | 90% | 2805 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,651 psi | 87% | 2782 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,711 psi | 90% | 2782 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,043 psi | 88% | 2789 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,593 psi | 87% | 2808 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 56,681 psi | 89% | 2844 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,959 psi | 66% | 2628 fps | 97.6% |
| Norma 201 | <<locked>> | 84% | 57,537 psi | 90% | 2799 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,592 psi | 86% | 2746 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,637 psi | 89% | 2844 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,274 psi | 87% | 2864 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 53,272 psi | 83% | 2936 fps | 99% |
| Norma URP | <<locked>> | 94% | 55,288 psi | 87% | 2867 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 57,609 psi | 90% | 2871 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 57,609 psi | 90% | 2920 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 43,700 psi | 68% | 2710 fps | 96.1% |
| Ramshot TAC | <<locked>> | 82% | 57,682 psi | 90% | 2831 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 57,667 psi | 90% | 2844 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,840 psi | 58% | 1775 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,868 psi | 86% | 2799 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,694 psi | 86% | 2871 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,404 psi | 85% | 2904 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 56,391 psi | 88% | 2907 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,013 psi | 86% | 2933 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 54,824 psi | 86% | 2753 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,346 psi | 85% | 2795 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,825 psi | 87% | 2838 fps | 96.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,927 psi | 88% | 2894 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 92% | 57,464 psi | 90% | 2835 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,593 psi | 87% | 2808 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,651 psi | 87% | 2782 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,043 psi | 88% | 2789 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,681 psi | 89% | 2844 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,057 psi | 88% | 2858 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,579 psi | 89% | 2815 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,188 psi | 90% | 2828 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,998 psi | 86% | 2684 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,738 psi | 87% | 2687 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,448 psi | 87% | 2759 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,434 psi | 87% | 2890 fps | 98.1% |
| Somchem S335 | <<locked>> | 82% | 54,534 psi | 85% | 2680 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,028 psi | 88% | 2795 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 54,505 psi | 85% | 2792 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 57,667 psi | 90% | 2831 fps | 96.4% |
| Somchem S365 | <<locked>> | 96% | 54,128 psi | 85% | 2867 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,710 psi | 89% | 2874 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 82% | 55,463 psi | 87% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,940 psi | 86% | 2713 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,259 psi | 87% | 2726 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,796 psi | 87% | 2769 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 57,551 psi | 90% | 2861 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,820 psi | 77% | 2736 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 86% | 56,898 psi | 89% | 2772 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,579 psi | 89% | 2867 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,098 psi | 83% | 2871 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 53,766 psi | 84% | 2923 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 57,305 psi | 90% | 2831 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,274 psi | 87% | 2881 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,772 psi | 67% | 2844 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 57,508 psi | 90% | 2838 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,156 psi | 83% | 2812 fps | 97.5% |
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% | 49,110 psi | 77% | 2635 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,195 psi | 74% | 2631 fps | 97.1% |
| Accurate 3100 | <<locked>> | 88% | 33,591 psi | 53% | 2448 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 46,485 psi | 73% | 2638 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,070 psi | 55% | 2497 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 51,967 psi | 81% | 2756 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,179 psi | 69% | 2612 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 44,512 psi | 70% | 2697 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,012 psi | 85% | 2753 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,327 psi | 76% | 2818 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,440 psi | 70% | 2635 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,529 psi | 74% | 2700 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,447 psi | 54% | 2503 fps | 97.4% |
| Alliant Reloder-17 | 57.7 gr | 80% | 38,885 psi | 61% | 2631 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,932 psi | 69% | 2687 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,034 psi | 69% | 2736 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,818 psi | 42% | 2316 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,447 psi | 54% | 2543 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 86% | 32,735 psi | 51% | 2543 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,677 psi | 81% | 2772 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 43,192 psi | 68% | 2720 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 44,614 psi | 70% | 2644 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,034 psi | 69% | 2736 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 39,537 psi | 62% | 2516 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,838 psi | 84% | 2782 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,063 psi | 71% | 2654 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 37,057 psi | 58% | 2539 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 82% | 42,844 psi | 67% | 2621 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 51,822 psi | 81% | 2802 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 52,533 psi | 82% | 2766 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,010 psi | 50% | 2405 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,921 psi | 77% | 2746 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 38,711 psi | 61% | 2605 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,992 psi | 42% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,154 psi | 79% | 2717 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,881 psi | 83% | 2743 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,470 psi | 73% | 2644 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,646 psi | 76% | 2667 fps | 98.1% |
| IMR 4350 | <<locked>> | 84% | 39,929 psi | 63% | 2549 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,828 psi | 64% | 2546 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 33,794 psi | 53% | 2451 fps | 97% |
| IMR 4895 | <<locked>> | 80% | 48,733 psi | 76% | 2730 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 50,401 psi | 79% | 2743 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 54,012 psi | 85% | 2753 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,112 psi | 82% | 2733 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,097 psi | 80% | 2684 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,586 psi | 73% | 2644 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,421 psi | 60% | 2500 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 36,666 psi | 57% | 2477 fps | 95.2% |
| Lovex S071 | <<locked>> | 94% | 34,621 psi | 54% | 2470 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 50,836 psi | 80% | 2700 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,372 psi | 81% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,876 psi | 73% | 2690 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,281 psi | 71% | 2694 fps | 95.5% |
| Norma MRP | <<locked>> | 90% | 37,739 psi | 59% | 2631 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 35,085 psi | 55% | 2493 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 80% | 47,007 psi | 74% | 2710 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,318 psi | 57% | 2533 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 98% | 40,785 psi | 64% | 2648 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 54,027 psi | 85% | 2779 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,896 psi | 84% | 2789 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,543 psi | 43% | 1588 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,150 psi | 71% | 2638 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,140 psi | 80% | 2815 fps | 100% |
| ReloadSwiss RS 60 | 57.7 gr | 80% | 41,350 psi | 65% | 2687 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,679 psi | 54% | 2510 fps | 96.9% |
| ReloadSwiss RS 70 | 58.6 gr | 80% | 34,084 psi | 53% | 2513 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 48,385 psi | 76% | 2654 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,974 psi | 66% | 2592 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 49,211 psi | 77% | 2730 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 92% | 42,801 psi | 67% | 2667 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 39,537 psi | 62% | 2516 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,421 psi | 60% | 2500 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,112 psi | 82% | 2733 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,586 psi | 73% | 2644 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,666 psi | 57% | 2477 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,033 psi | 67% | 2644 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,794 psi | 83% | 2756 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,415 psi | 79% | 2726 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,721 psi | 81% | 2638 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,569 psi | 68% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,594 psi | 59% | 2441 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 42,424 psi | 66% | 2664 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 51,430 psi | 81% | 2638 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,576 psi | 82% | 2746 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,438 psi | 67% | 2592 fps | 99.8% |
| Somchem S361 | <<locked>> | 96% | 54,114 psi | 85% | 2779 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 31,575 psi | 49% | 2451 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 40,843 psi | 64% | 2598 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 52,214 psi | 82% | 2621 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,486 psi | 76% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,762 psi | 76% | 2638 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,466 psi | 63% | 2526 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,448 psi | 57% | 2493 fps | 97.6% |
| Vihtavuori N165 | <<locked>> | 96% | 42,888 psi | 67% | 2631 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 47,065 psi | 74% | 2628 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,926 psi | 56% | 2493 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 82% | 29,356 psi | 46% | 2392 fps | 95.8% |
| Vihtavuori N560 | <<locked>> | 98% | 50,328 psi | 79% | 2861 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,752 psi | 56% | 2467 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 37,217 psi | 58% | 2543 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,237 psi | 40% | 2336 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,328 psi | 79% | 2733 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,221 psi | 68% | 2641 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 104 powders for .300 WSM loaded with the .311 | 180gr | Sellier & Bellot SPRN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,736 fps to 2,986 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 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 180.0 gr projectile in 0.311" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, Alliant Reloder-22 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 WSM with the .311 | 180gr | Sellier & Bellot SPRN 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.