Load Specifications
Bullet Manufacturer:Berger
Bullet Weight:185 gr
Bullet Diameter:0.308"
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:1:12.0
Load data in caliber .300 WSM with .308 | 185gr | Berger VLD Hunting bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 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 2015 | <<locked>> | 82% | 57,377 psi | 90% | 2654 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,029 psi | 89% | 2687 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,724 psi | 89% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,405 psi | 88% | 2713 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,674 psi | 75% | 2677 fps | 98.6% |
| Accurate 4064 | <<locked>> | 88% | 57,014 psi | 89% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,435 psi | 90% | 2838 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 56,637 psi | 89% | 2769 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,288 psi | 85% | 2723 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,172 psi | 86% | 2825 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,361 psi | 87% | 2713 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,043 psi | 89% | 2684 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,811 psi | 89% | 2894 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,839 psi | 86% | 2746 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,129 psi | 86% | 2766 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,592 psi | 86% | 2841 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,028 psi | 88% | 2874 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,012 psi | 85% | 2812 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,572 psi | 75% | 2753 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,875 psi | 70% | 2700 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,494 psi | 62% | 2615 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,807 psi | 80% | 2877 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,507 psi | 89% | 2789 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 55,477 psi | 87% | 2762 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,572 psi | 75% | 2753 fps | 96.5% |
| Bofors RP7 | <<locked>> | 92% | 55,216 psi | 87% | 2743 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,753 psi | 89% | 2694 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,230 psi | 87% | 2746 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,028 psi | 88% | 2776 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 53,969 psi | 85% | 2805 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 94% | 54,534 psi | 85% | 2769 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 84% | 57,232 psi | 90% | 2776 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,810 psi | 86% | 2766 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,334 psi | 90% | 2815 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,478 psi | 89% | 2877 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,056 psi | 56% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,203 psi | 90% | 2762 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,362 psi | 88% | 2733 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,623 psi | 89% | 2746 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,521 psi | 87% | 2723 fps | 99% |
| IMR 4350 | <<locked>> | 96% | 55,680 psi | 87% | 2772 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,681 psi | 89% | 2766 fps | 99% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,926 psi | 86% | 2789 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 56,565 psi | 89% | 2792 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 54,824 psi | 86% | 2756 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 82% | 55,361 psi | 87% | 2713 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,043 psi | 89% | 2743 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,637 psi | 87% | 2694 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,174 psi | 90% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,507 psi | 89% | 2762 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 54,331 psi | 85% | 2753 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,624 psi | 62% | 2533 fps | 97% |
| Norma 201 | <<locked>> | 84% | 55,317 psi | 87% | 2713 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,941 psi | 88% | 2710 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,404 psi | 85% | 2753 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,521 psi | 89% | 2825 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 50,343 psi | 79% | 2835 fps | 98.4% |
| Norma URP | <<locked>> | 96% | 56,275 psi | 88% | 2825 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 54,955 psi | 86% | 2779 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,780 psi | 84% | 2851 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 96% | 54,998 psi | 86% | 2828 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,644 psi | 73% | 2707 fps | 96.7% |
| Ramshot TAC | <<locked>> | 82% | 55,637 psi | 87% | 2743 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,332 psi | 87% | 2756 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,608 psi | 57% | 1722 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,246 psi | 88% | 2762 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,999 psi | 88% | 2835 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,477 psi | 87% | 2864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,232 psi | 90% | 2864 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,130 psi | 88% | 2894 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,333 psi | 88% | 2690 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,970 psi | 88% | 2713 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,303 psi | 87% | 2753 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 56,884 psi | 89% | 2795 fps | 96.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,011 psi | 83% | 2795 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 92% | 55,216 psi | 87% | 2743 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,507 psi | 89% | 2762 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,043 psi | 89% | 2743 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,174 psi | 90% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,331 psi | 85% | 2753 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,145 psi | 90% | 2815 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,302 psi | 85% | 2723 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,129 psi | 86% | 2743 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,594 psi | 89% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,014 psi | 89% | 2644 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,724 psi | 89% | 2720 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,518 psi | 82% | 2789 fps | 97.5% |
| Somchem S335 | <<locked>> | 84% | 55,956 psi | 88% | 2644 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,522 psi | 90% | 2759 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,521 psi | 87% | 2753 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 54,868 psi | 86% | 2825 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,824 psi | 84% | 2776 fps | 98.4% |
| Unknown powder | <<locked>> | 94% | 56,913 psi | 89% | 2828 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 86% | 56,376 psi | 88% | 2625 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,159 psi | 88% | 2674 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,724 psi | 87% | 2680 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 56,811 psi | 89% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 57,609 psi | 90% | 2802 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,730 psi | 70% | 2612 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 86% | 55,434 psi | 87% | 2707 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,143 psi | 85% | 2795 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,198 psi | 79% | 2776 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,824 psi | 86% | 2743 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,969 psi | 85% | 2805 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,364 psi | 63% | 2740 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,144 psi | 88% | 2799 fps | 97.8% |
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% | 54,041 psi | 85% | 2612 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,963 psi | 74% | 2552 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,895 psi | 83% | 2687 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 40,814 psi | 64% | 2451 fps | 95.2% |
| Accurate 3100 | <<locked>> | 90% | 33,997 psi | 53% | 2415 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 44,469 psi | 70% | 2556 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,199 psi | 52% | 2408 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 80% | 49,893 psi | 78% | 2667 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,453 psi | 67% | 2526 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 45,295 psi | 71% | 2657 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,982 psi | 81% | 2667 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,301 psi | 84% | 2638 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,137 psi | 72% | 2723 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,627 psi | 67% | 2552 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,513 psi | 71% | 2612 fps | 99.7% |
| Alliant Reloder-16 | 50.2 gr | 80% | 33,112 psi | 52% | 2421 fps | 96.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,941 psi | 58% | 2539 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 44,585 psi | 70% | 2648 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 44,599 psi | 70% | 2697 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,224 psi | 43% | 2287 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,824 psi | 55% | 2500 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 86% | 30,980 psi | 49% | 2448 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,385 psi | 77% | 2680 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 42,627 psi | 67% | 2559 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 44,599 psi | 70% | 2697 fps | 95.7% |
| Bofors RP7 | <<locked>> | 82% | 40,350 psi | 63% | 2484 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,374 psi | 84% | 2648 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,590 psi | 81% | 2697 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,047 psi | 67% | 2562 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 80% | 38,363 psi | 60% | 2520 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 42,699 psi | 67% | 2566 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 50,459 psi | 79% | 2677 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,458 psi | 48% | 2320 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,048 psi | 69% | 2612 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 39,624 psi | 62% | 2575 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,992 psi | 42% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,744 psi | 70% | 2569 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 46,746 psi | 73% | 2598 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,785 psi | 65% | 2507 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,147 psi | 64% | 2470 fps | 96.2% |
| IMR 4350 | <<locked>> | 86% | 40,799 psi | 64% | 2513 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,334 psi | 62% | 2461 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 29,167 psi | 46% | 2290 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 46,673 psi | 73% | 2641 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 51,459 psi | 81% | 2703 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 51,982 psi | 81% | 2667 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,864 psi | 78% | 2644 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,298 psi | 77% | 2598 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,730 psi | 70% | 2559 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,883 psi | 58% | 2415 fps | 96.4% |
| Lovex S070 | <<locked>> | 82% | 37,318 psi | 58% | 2444 fps | 95.3% |
| Lovex S071 | <<locked>> | 96% | 34,896 psi | 55% | 2434 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 48,892 psi | 77% | 2615 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,443 psi | 77% | 2618 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,889 psi | 70% | 2602 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 46,209 psi | 72% | 2654 fps | 95.7% |
| Norma MRP | <<locked>> | 92% | 38,319 psi | 60% | 2595 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 33,446 psi | 52% | 2408 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 80% | 44,875 psi | 70% | 2621 fps | 99.8% |
| Ramshot Grand | <<locked>> | 98% | 49,893 psi | 78% | 2785 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 82% | 34,606 psi | 54% | 2444 fps | 95% |
| Ramshot Magnum | <<locked>> | 98% | 43,033 psi | 67% | 2641 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 52,083 psi | 82% | 2690 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,996 psi | 81% | 2707 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,354 psi | 43% | 1539 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,337 psi | 68% | 2549 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,747 psi | 76% | 2723 fps | 99.9% |
| ReloadSwiss RS 60 | 54 gr | 80% | 39,291 psi | 62% | 2595 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,924 psi | 52% | 2425 fps | 96.2% |
| ReloadSwiss RS 70 | 54.9 gr | 80% | 32,576 psi | 51% | 2425 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 53,171 psi | 83% | 2644 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,688 psi | 73% | 2572 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,190 psi | 63% | 2510 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 50,169 psi | 79% | 2690 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 94% | 43,555 psi | 68% | 2635 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 82% | 40,350 psi | 63% | 2484 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,883 psi | 58% | 2415 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,864 psi | 78% | 2644 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,730 psi | 70% | 2559 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,318 psi | 58% | 2444 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,060 psi | 64% | 2556 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,705 psi | 79% | 2667 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,428 psi | 76% | 2641 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,908 psi | 78% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,930 psi | 66% | 2431 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,450 psi | 60% | 2411 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,134 psi | 68% | 2628 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 49,647 psi | 78% | 2556 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,256 psi | 79% | 2657 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,640 psi | 64% | 2507 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 29,907 psi | 47% | 2362 fps | 98.6% |
| Somchem S385 | <<locked>> | 92% | 41,437 psi | 65% | 2562 fps | 95.7% |
| Unknown powder | <<locked>> | 80% | 36,056 psi | 56% | 2461 fps | 96.8% |
| Vihtavuori N133 | <<locked>> | 80% | 47,369 psi | 74% | 2503 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,456 psi | 73% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,224 psi | 72% | 2546 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,809 psi | 55% | 2365 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 36,172 psi | 57% | 2438 fps | 97.4% |
| Vihtavuori N165 | <<locked>> | 98% | 41,887 psi | 66% | 2559 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 45,919 psi | 72% | 2569 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,608 psi | 57% | 2477 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 82% | 27,702 psi | 43% | 2306 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,084 psi | 53% | 2382 fps | 98.8% |
| Winchester 760 | <<locked>> | 80% | 38,363 psi | 60% | 2520 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,614 psi | 40% | 2306 fps | 95.2% |
| Winchester Supreme 780 | <<locked>> | 94% | 45,223 psi | 71% | 2625 fps | 95.5% |
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 117 powders for .300 WSM loaded with the .308 | 185gr | Berger VLD Hunting. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,894 fps. Accurate 3100 gives the best case fill at 100 %, and 117 of the 117 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 185.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for .300 WSM with the .308 | 185gr | Berger VLD Hunting they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Hodgdon H4831 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.