Load Specifications
Bullet Manufacturer:Berger
Bullet Weight:205 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:1:11.0
Load data in caliber .300 WSM with .308 | 205gr | Berger Elite Hunter bullet and 108 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-17.
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% | 55,796 psi | 87% | 2520 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,679 psi | 86% | 2549 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,154 psi | 79% | 2579 fps | 99.5% |
| Accurate 4064 | <<locked>> | 86% | 56,043 psi | 88% | 2572 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 56,391 psi | 88% | 2674 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,317 psi | 87% | 2598 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,347 psi | 88% | 2602 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 57,537 psi | 90% | 2717 fps | 98.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 51,503 psi | 81% | 2654 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,508 psi | 90% | 2592 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,390 psi | 87% | 2720 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,942 psi | 89% | 2621 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 57,130 psi | 90% | 2641 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 57,101 psi | 89% | 2723 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,534 psi | 85% | 2700 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,449 psi | 88% | 2703 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,024 psi | 78% | 2654 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,007 psi | 74% | 2595 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,292 psi | 65% | 2526 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,635 psi | 84% | 2772 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,926 psi | 86% | 2615 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,774 psi | 72% | 2582 fps | 96.9% |
| Bofors RP3 | <<locked>> | 86% | 54,114 psi | 85% | 2592 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,024 psi | 78% | 2654 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 57,217 psi | 90% | 2628 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 82% | 57,392 psi | 90% | 2625 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 54,694 psi | 86% | 2612 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,347 psi | 88% | 2694 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 94% | 56,753 psi | 89% | 2661 fps | 98.9% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 54,041 psi | 85% | 2641 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 82% | 55,912 psi | 88% | 2605 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 57,377 psi | 90% | 2651 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,057 psi | 88% | 2644 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,940 psi | 86% | 2710 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,230 psi | 57% | 1585 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,898 psi | 88% | 2592 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,071 psi | 86% | 2562 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,303 psi | 87% | 2579 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 57,624 psi | 90% | 2608 fps | 99.6% |
| IMR 4350 | <<locked>> | 94% | 54,505 psi | 85% | 2612 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,303 psi | 87% | 2602 fps | 99.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,464 psi | 90% | 2674 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,187 psi | 86% | 2621 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 57,000 psi | 89% | 2651 fps | 97.3% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,750 psi | 83% | 2690 fps | 97% |
| IMR 8208 XBR | <<locked>> | 82% | 57,508 psi | 90% | 2592 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,463 psi | 87% | 2572 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,580 psi | 90% | 2572 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,970 psi | 88% | 2579 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,303 psi | 87% | 2602 fps | 99.9% |
| Lovex S070 | <<locked>> | 94% | 56,637 psi | 89% | 2641 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,640 psi | 65% | 2441 fps | 98.3% |
| Norma 201 | <<locked>> | 84% | 57,479 psi | 90% | 2589 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,520 psi | 85% | 2539 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,405 psi | 88% | 2631 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,100 psi | 86% | 2661 fps | 98.3% |
| Norma MRPᴾ | <<locked>> | 100% | 52,910 psi | 83% | 2733 fps | 99.4% |
| Norma URP | <<locked>> | 94% | 55,158 psi | 86% | 2661 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 57,276 psi | 90% | 2657 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,391 psi | 88% | 2753 fps | 98% |
| Ramshot Hunter | <<locked>> | 96% | 57,479 psi | 90% | 2713 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,762 psi | 76% | 2615 fps | 98.2% |
| Ramshot TAC | <<locked>> | 82% | 57,392 psi | 90% | 2621 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 82% | 57,435 psi | 90% | 2631 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,854 psi | 58% | 1621 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,737 psi | 86% | 2595 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,476 psi | 85% | 2657 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,172 psi | 85% | 2690 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 56,115 psi | 88% | 2700 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,752 psi | 86% | 2726 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 40,016 psi | 63% | 2536 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 84% | 54,534 psi | 85% | 2543 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,259 psi | 85% | 2589 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,579 psi | 87% | 2635 fps | 97.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,521 psi | 87% | 2687 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 92% | 57,217 psi | 90% | 2628 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,303 psi | 87% | 2602 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,463 psi | 87% | 2572 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,970 psi | 88% | 2579 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,637 psi | 89% | 2641 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,593 psi | 87% | 2644 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,463 psi | 88% | 2608 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,130 psi | 90% | 2618 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,897 psi | 86% | 2477 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,608 psi | 87% | 2480 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,216 psi | 87% | 2559 fps | 99.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,027 psi | 86% | 2684 fps | 98.7% |
| Somchem S335 | <<locked>> | 82% | 54,708 psi | 86% | 2480 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,898 psi | 88% | 2589 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 57,696 psi | 90% | 2628 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 57,363 psi | 90% | 2631 fps | 97% |
| Somchem S365 | <<locked>> | 98% | 57,537 psi | 90% | 2703 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,376 psi | 88% | 2671 fps | 99.3% |
| Unknown powder | <<locked>> | 92% | 55,666 psi | 87% | 2661 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 55,056 psi | 86% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,955 psi | 86% | 2507 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,418 psi | 85% | 2513 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,753 psi | 87% | 2566 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,246 psi | 88% | 2635 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,804 psi | 73% | 2516 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 86% | 57,421 psi | 90% | 2582 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,666 psi | 89% | 2680 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,779 psi | 83% | 2664 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 50,154 psi | 79% | 2671 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,971 psi | 89% | 2625 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,347 psi | 88% | 2694 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,351 psi | 66% | 2644 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,578 psi | 86% | 2638 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% | 49,168 psi | 77% | 2434 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,351 psi | 66% | 2352 fps | 96.7% |
| Accurate 3100 | <<locked>> | 86% | 31,227 psi | 49% | 2228 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 46,572 psi | 73% | 2444 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,940 psi | 55% | 2320 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 80% | 51,764 psi | 81% | 2549 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,135 psi | 69% | 2421 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 41,597 psi | 65% | 2454 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 98% | 48,080 psi | 75% | 2598 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,882 psi | 84% | 2546 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,283 psi | 76% | 2615 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,338 psi | 69% | 2441 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,355 psi | 74% | 2503 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,447 psi | 54% | 2329 fps | 98.3% |
| Alliant Reloder-17 | 51.8 gr | 80% | 38,696 psi | 61% | 2441 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 41,133 psi | 64% | 2451 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 41,017 psi | 64% | 2493 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,266 psi | 40% | 2113 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 92% | 32,097 psi | 50% | 2313 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 82% | 28,485 psi | 45% | 2260 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,474 psi | 81% | 2566 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 40,466 psi | 63% | 2480 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 44,585 psi | 70% | 2454 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 41,017 psi | 64% | 2493 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 39,392 psi | 62% | 2333 fps | 96.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,780 psi | 84% | 2575 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,962 psi | 70% | 2461 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 40,234 psi | 63% | 2428 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 82% | 39,334 psi | 62% | 2365 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 50,430 psi | 79% | 2589 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 52,373 psi | 82% | 2556 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,981 psi | 50% | 2234 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,093 psi | 72% | 2503 fps | 100% |
| Hodgdon Superformance | 54.8 gr | 80% | 35,940 psi | 56% | 2369 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,195 psi | 43% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,485 psi | 73% | 2457 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,689 psi | 76% | 2477 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,395 psi | 68% | 2398 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,641 psi | 67% | 2369 fps | 97.5% |
| IMR 4350 | <<locked>> | 82% | 37,478 psi | 59% | 2320 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,756 psi | 64% | 2362 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 30,661 psi | 48% | 2208 fps | 96.8% |
| IMR 4895 | <<locked>> | 80% | 48,573 psi | 76% | 2526 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 47,311 psi | 74% | 2500 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 96% | 45,992 psi | 72% | 2575 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 53,882 psi | 84% | 2546 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 51,851 psi | 81% | 2526 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,082 psi | 80% | 2480 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,572 psi | 73% | 2448 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,479 psi | 60% | 2323 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 36,622 psi | 57% | 2303 fps | 96.1% |
| Lovex S071 | <<locked>> | 92% | 32,416 psi | 51% | 2254 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 50,908 psi | 80% | 2500 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,285 psi | 80% | 2497 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,717 psi | 73% | 2490 fps | 100% |
| Norma 204 | <<locked>> | 86% | 42,163 psi | 66% | 2448 fps | 95.6% |
| Norma MRP | <<locked>> | 88% | 35,143 psi | 55% | 2398 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 35,041 psi | 55% | 2320 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 46,920 psi | 74% | 2513 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 45,208 psi | 71% | 2572 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 33,866 psi | 53% | 2303 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 94% | 39,131 psi | 61% | 2441 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 53,867 psi | 84% | 2572 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,882 psi | 84% | 2585 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,615 psi | 43% | 1450 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,020 psi | 71% | 2448 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,879 psi | 80% | 2608 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,133 psi | 64% | 2490 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,664 psi | 54% | 2336 fps | 97.8% |
| ReloadSwiss RS 70 | 52.7 gr | 80% | 34,040 psi | 53% | 2343 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 37,376 psi | 59% | 2477 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 48,486 psi | 76% | 2457 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,945 psi | 66% | 2405 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 45,890 psi | 72% | 2484 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 40,059 psi | 63% | 2434 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 39,392 psi | 62% | 2333 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,479 psi | 60% | 2323 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,851 psi | 81% | 2526 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,572 psi | 73% | 2448 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,622 psi | 57% | 2303 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,815 psi | 67% | 2451 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,591 psi | 82% | 2552 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,183 psi | 79% | 2523 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,561 psi | 81% | 2434 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,468 psi | 68% | 2320 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,478 psi | 59% | 2267 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 39,668 psi | 62% | 2428 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 51,532 psi | 81% | 2438 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,373 psi | 82% | 2543 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,496 psi | 67% | 2405 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 50,386 psi | 79% | 2530 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 31,575 psi | 49% | 2280 fps | 99.6% |
| Somchem S385 | <<locked>> | 88% | 38,232 psi | 60% | 2369 fps | 95.8% |
| Unknown powder | <<locked>> | 80% | 37,753 psi | 59% | 2365 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 80% | 48,863 psi | 77% | 2379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,385 psi | 76% | 2421 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,153 psi | 75% | 2431 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,289 psi | 57% | 2267 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 37,942 psi | 59% | 2346 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 94% | 38,754 psi | 61% | 2372 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 47,718 psi | 75% | 2454 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,377 psi | 60% | 2385 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 27,427 psi | 43% | 2182 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 98% | 47,181 psi | 74% | 2618 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,621 psi | 56% | 2293 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 40,234 psi | 63% | 2428 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 82% | 23,627 psi | 37% | 2129 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,133 psi | 64% | 2421 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 108 powders for .300 WSM loaded with the .308 | 205gr | Berger Elite Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 2,772 fps; across all powders the maximum-charge window runs from 1,585 fps to 2,772 fps. Accurate 3100 gives the best case fill at 100 %, and 108 of the 108 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 205.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 WSM with the .308 | 205gr | Berger Elite Hunter 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.