Load Specifications
Bullet:.308 | 185gr | Berger JUG
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 JUG bullet and 107 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-16 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.
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% | 57,696 psi | 90% | 2661 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,319 psi | 90% | 2694 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,043 psi | 89% | 2746 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,594 psi | 89% | 2717 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,109 psi | 75% | 2687 fps | 98.7% |
| Accurate 4064 | <<locked>> | 88% | 57,551 psi | 90% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,143 psi | 85% | 2795 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 56,884 psi | 89% | 2772 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,505 psi | 85% | 2730 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,288 psi | 87% | 2828 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,622 psi | 87% | 2720 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,334 psi | 90% | 2687 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,014 psi | 89% | 2900 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 55,143 psi | 86% | 2825 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,100 psi | 86% | 2753 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,361 psi | 87% | 2772 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,056 psi | 86% | 2851 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,217 psi | 88% | 2877 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,433 psi | 85% | 2818 fps | 97.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,979 psi | 75% | 2759 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,310 psi | 71% | 2710 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,610 psi | 62% | 2618 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,242 psi | 80% | 2887 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,985 psi | 89% | 2795 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 55,695 psi | 87% | 2766 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,979 psi | 75% | 2759 fps | 96.6% |
| Bofors RP7 | <<locked>> | 92% | 55,419 psi | 87% | 2749 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,014 psi | 89% | 2700 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,492 psi | 87% | 2753 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,246 psi | 88% | 2782 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,447 psi | 85% | 2815 fps | 99% |
| Hodgdon H4350 | <<locked>> | 94% | 55,013 psi | 86% | 2779 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 84% | 57,493 psi | 90% | 2782 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,042 psi | 86% | 2772 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,609 psi | 90% | 2818 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,884 psi | 89% | 2884 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,013 psi | 56% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,464 psi | 90% | 2766 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,695 psi | 89% | 2740 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,869 psi | 89% | 2753 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,782 psi | 87% | 2730 fps | 99% |
| IMR 4350 | <<locked>> | 96% | 55,869 psi | 88% | 2776 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,188 psi | 90% | 2776 fps | 99.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,143 psi | 86% | 2795 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 56,811 psi | 89% | 2799 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 54,969 psi | 86% | 2759 fps | 96% |
| IMR 8208 XBR | <<locked>> | 82% | 55,622 psi | 87% | 2720 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,305 psi | 90% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,883 psi | 88% | 2700 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,653 psi | 90% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,985 psi | 89% | 2772 fps | 99.8% |
| Lovex S070 | <<locked>> | 94% | 54,549 psi | 85% | 2759 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,016 psi | 63% | 2543 fps | 97.1% |
| Norma 201 | <<locked>> | 84% | 55,579 psi | 87% | 2717 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,202 psi | 88% | 2713 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,650 psi | 86% | 2759 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,724 psi | 89% | 2828 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 50,705 psi | 79% | 2841 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 56,478 psi | 89% | 2831 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,143 psi | 86% | 2782 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,143 psi | 85% | 2861 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 96% | 55,216 psi | 87% | 2831 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,992 psi | 74% | 2717 fps | 96.9% |
| Ramshot TAC | <<locked>> | 82% | 55,825 psi | 87% | 2749 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,883 psi | 88% | 2762 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,579 psi | 57% | 1722 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,434 psi | 88% | 2769 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,260 psi | 88% | 2841 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,014 psi | 88% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,740 psi | 90% | 2871 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,304 psi | 88% | 2897 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,666 psi | 89% | 2694 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,231 psi | 88% | 2717 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,840 psi | 88% | 2762 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 57,290 psi | 90% | 2805 fps | 97% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,490 psi | 84% | 2805 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 92% | 55,419 psi | 87% | 2749 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,985 psi | 89% | 2772 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,305 psi | 90% | 2749 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,653 psi | 90% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,549 psi | 85% | 2759 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,392 psi | 90% | 2822 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,549 psi | 85% | 2730 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,376 psi | 87% | 2749 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,855 psi | 89% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,246 psi | 90% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,884 psi | 89% | 2726 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,997 psi | 83% | 2799 fps | 97.6% |
| Somchem S335 | <<locked>> | 84% | 56,217 psi | 88% | 2648 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,288 psi | 85% | 2717 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,738 psi | 87% | 2756 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,071 psi | 86% | 2828 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,230 psi | 85% | 2782 fps | 98.5% |
| Unknown powder | <<locked>> | 94% | 57,435 psi | 90% | 2838 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,681 psi | 89% | 2628 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,463 psi | 88% | 2677 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,999 psi | 88% | 2687 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,348 psi | 90% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,215 psi | 85% | 2756 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,092 psi | 71% | 2621 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 86% | 55,651 psi | 87% | 2713 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,621 psi | 86% | 2805 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,444 psi | 79% | 2782 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,984 psi | 86% | 2746 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,447 psi | 85% | 2815 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,669 psi | 64% | 2749 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,594 psi | 89% | 2805 fps | 97.9% |
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 2015 | <<locked>> | 80% | 54,375 psi | 85% | 2618 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,282 psi | 74% | 2559 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,229 psi | 83% | 2694 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 41,002 psi | 64% | 2457 fps | 95.3% |
| Accurate 3100 | <<locked>> | 90% | 34,171 psi | 54% | 2418 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 44,773 psi | 70% | 2562 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,446 psi | 52% | 2415 fps | 96.8% |
| ADI AR 2206H | <<locked>> | 80% | 50,169 psi | 79% | 2674 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,714 psi | 67% | 2533 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 45,730 psi | 72% | 2667 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,257 psi | 82% | 2671 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,635 psi | 84% | 2641 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,369 psi | 73% | 2730 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 45,411 psi | 71% | 2661 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,902 psi | 67% | 2559 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,788 psi | 72% | 2618 fps | 99.7% |
| Alliant Reloder-16 | 50.5 gr | 80% | 33,301 psi | 52% | 2428 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,362 psi | 59% | 2549 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,020 psi | 71% | 2657 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 45,005 psi | 71% | 2703 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 82% | 25,846 psi | 41% | 2241 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,983 psi | 55% | 2510 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 86% | 31,285 psi | 49% | 2457 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,835 psi | 78% | 2690 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 42,888 psi | 67% | 2566 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 45,005 psi | 71% | 2703 fps | 95.8% |
| Bofors RP7 | <<locked>> | 82% | 40,524 psi | 64% | 2487 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,606 psi | 84% | 2651 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,822 psi | 81% | 2703 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,294 psi | 68% | 2569 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 80% | 38,638 psi | 61% | 2530 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 86% | 42,931 psi | 67% | 2569 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 50,734 psi | 80% | 2684 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,690 psi | 48% | 2326 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,309 psi | 69% | 2618 fps | 100% |
| Hodgdon Superformance | 60.3 gr | 84% | 39,798 psi | 62% | 2582 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,006 psi | 42% | 1506 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,976 psi | 70% | 2575 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 46,818 psi | 73% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,872 psi | 66% | 2510 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,350 psi | 65% | 2477 fps | 96.3% |
| IMR 4350 | <<locked>> | 86% | 40,988 psi | 64% | 2520 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,566 psi | 62% | 2467 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 29,399 psi | 46% | 2297 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 46,949 psi | 74% | 2648 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 51,605 psi | 81% | 2707 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 52,257 psi | 82% | 2671 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,140 psi | 79% | 2651 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,574 psi | 78% | 2605 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,991 psi | 71% | 2562 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,115 psi | 58% | 2421 fps | 96.5% |
| Lovex S070 | <<locked>> | 82% | 37,550 psi | 59% | 2451 fps | 95.4% |
| Lovex S071 | <<locked>> | 96% | 35,099 psi | 55% | 2441 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 49,182 psi | 77% | 2625 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,734 psi | 78% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,165 psi | 71% | 2608 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 46,369 psi | 73% | 2661 fps | 95.7% |
| Norma MRP | <<locked>> | 92% | 38,711 psi | 61% | 2605 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 33,678 psi | 53% | 2418 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 80% | 45,136 psi | 71% | 2628 fps | 99.8% |
| Ramshot Grand | <<locked>> | 98% | 50,241 psi | 79% | 2795 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 82% | 34,940 psi | 55% | 2454 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 98% | 43,381 psi | 68% | 2651 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 52,272 psi | 82% | 2697 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,257 psi | 82% | 2713 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,383 psi | 43% | 1542 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,555 psi | 68% | 2556 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,037 psi | 77% | 2730 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,740 psi | 62% | 2608 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,127 psi | 52% | 2431 fps | 96.3% |
| ReloadSwiss RS 70 | 55.2 gr | 80% | 32,735 psi | 51% | 2431 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 53,214 psi | 83% | 2648 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,934 psi | 74% | 2579 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,422 psi | 63% | 2513 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 50,386 psi | 79% | 2697 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 94% | 43,772 psi | 69% | 2638 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 82% | 40,524 psi | 64% | 2487 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,115 psi | 58% | 2421 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,140 psi | 79% | 2651 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,991 psi | 71% | 2562 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,550 psi | 59% | 2451 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,292 psi | 65% | 2562 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,952 psi | 80% | 2674 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,660 psi | 76% | 2648 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,183 psi | 79% | 2562 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,177 psi | 66% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,638 psi | 61% | 2418 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,337 psi | 68% | 2635 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 49,922 psi | 78% | 2562 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,749 psi | 80% | 2664 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,901 psi | 64% | 2513 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 30,139 psi | 47% | 2372 fps | 98.7% |
| Somchem S385 | <<locked>> | 90% | 39,059 psi | 61% | 2516 fps | 95% |
| Unknown powder | <<locked>> | 80% | 36,303 psi | 57% | 2467 fps | 96.9% |
| Vihtavuori N133 | <<locked>> | 80% | 47,442 psi | 74% | 2507 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,789 psi | 73% | 2546 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,499 psi | 73% | 2552 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,041 psi | 55% | 2372 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 36,390 psi | 57% | 2444 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 98% | 42,279 psi | 66% | 2569 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 46,166 psi | 72% | 2575 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,825 psi | 58% | 2484 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 82% | 27,920 psi | 44% | 2316 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,432 psi | 54% | 2392 fps | 98.9% |
| Winchester 760 | <<locked>> | 80% | 38,638 psi | 61% | 2530 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,759 psi | 40% | 2313 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 94% | 45,614 psi | 71% | 2635 fps | 95.7% |
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 107 powders for .300 WSM loaded with the .308 | 185gr | Berger JUG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,900 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,900 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 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, ADI AR 2209, Alliant Power Pro Varmint 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-16, Hodgdon Superformance rank at the top here: for .300 WSM with the .308 | 185gr | Berger JUG 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.