Load Specifications
Bullet Manufacturer:Remington
Bullet Weight:180 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:1:6.0
Load data in caliber .300 WSM with .308 | 180gr | Remington SP Core-Lokt 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-26 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% | 56,565 psi | 89% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,302 psi | 85% | 2756 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,358 psi | 80% | 2792 fps | 99.3% |
| Accurate 4064 | <<locked>> | 86% | 56,913 psi | 89% | 2792 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,421 psi | 90% | 2897 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 56,043 psi | 88% | 2986 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 82% | 55,941 psi | 88% | 2818 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 57,130 psi | 90% | 2825 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 54,679 psi | 86% | 2884 fps | 97.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,547 psi | 82% | 2874 fps | 96.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,333 psi | 88% | 2949 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 54,723 psi | 86% | 2881 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,331 psi | 85% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,621 psi | 86% | 2818 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,447 psi | 85% | 2900 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,738 psi | 87% | 2927 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,537 psi | 90% | 2927 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,140 psi | 80% | 2871 fps | 97.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,211 psi | 76% | 2812 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,018 psi | 66% | 2726 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,172 psi | 86% | 3002 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,753 psi | 87% | 2838 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,920 psi | 74% | 2795 fps | 96.4% |
| Bofors RP3 | <<locked>> | 86% | 54,998 psi | 86% | 2815 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,140 psi | 80% | 2871 fps | 97.5% |
| Bofors RP7 | <<locked>> | 90% | 54,592 psi | 86% | 2799 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 86% | 55,608 psi | 87% | 2831 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 55,999 psi | 88% | 2897 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 90% | 55,883 psi | 88% | 2854 fps | 98.4% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 56,202 psi | 88% | 2877 fps | 96.3% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 55,143 psi | 86% | 2861 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 82% | 56,579 psi | 89% | 2828 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,650 psi | 86% | 2825 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,782 psi | 89% | 2867 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,231 psi | 88% | 2933 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,361 psi | 57% | 1742 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,609 psi | 90% | 2831 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,290 psi | 90% | 2805 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,492 psi | 89% | 2808 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,695 psi | 87% | 2789 fps | 99.1% |
| IMR 4350 | <<locked>> | 94% | 55,390 psi | 87% | 2831 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,231 psi | 88% | 2825 fps | 99.1% |
| IMR 4831 | <<locked>> | 94% | 54,157 psi | 85% | 2838 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 56,043 psi | 88% | 2848 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 54,273 psi | 85% | 2812 fps | 96.1% |
| Lovex D073.6 | <<locked>> | 82% | 56,246 psi | 88% | 2792 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,737 psi | 86% | 2743 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,579 psi | 89% | 2799 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,014 psi | 88% | 2818 fps | 99.8% |
| Lovex S070 | <<locked>> | 94% | 57,392 psi | 90% | 2861 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,612 psi | 67% | 2641 fps | 97.9% |
| Norma 201 | <<locked>> | 82% | 54,534 psi | 85% | 2762 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,187 psi | 86% | 2759 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,421 psi | 90% | 2858 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,188 psi | 88% | 2881 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 54,099 psi | 85% | 2953 fps | 99.1% |
| Norma URP | <<locked>> | 94% | 55,999 psi | 88% | 2884 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 54,476 psi | 85% | 2831 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,882 psi | 86% | 2884 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,570 psi | 70% | 2730 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,898 psi | 58% | 1781 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,564 psi | 87% | 2815 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,317 psi | 87% | 2884 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,448 psi | 87% | 2920 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,392 psi | 90% | 2923 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,825 psi | 87% | 2949 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 40,973 psi | 64% | 2736 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 84% | 55,376 psi | 87% | 2766 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,129 psi | 86% | 2812 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,681 psi | 89% | 2858 fps | 97.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2913 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 90% | 54,592 psi | 86% | 2799 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,014 psi | 88% | 2818 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,246 psi | 88% | 2792 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,579 psi | 89% | 2799 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,392 psi | 90% | 2861 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,797 psi | 89% | 2871 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,072 psi | 89% | 2825 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,201 psi | 85% | 2792 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,579 psi | 87% | 2697 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,275 psi | 88% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,043 psi | 88% | 2776 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,347 psi | 88% | 2910 fps | 98.3% |
| Somchem S335 | <<locked>> | 82% | 55,129 psi | 86% | 2690 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,724 psi | 89% | 2812 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,056 psi | 86% | 2805 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 54,839 psi | 86% | 2795 fps | 95.9% |
| Somchem S365 | <<locked>> | 96% | 55,216 psi | 87% | 2887 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,595 psi | 90% | 2890 fps | 99% |
| Vihtavuori N133 | <<locked>> | 82% | 56,086 psi | 88% | 2677 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,593 psi | 87% | 2723 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,767 psi | 87% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,492 psi | 89% | 2782 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,592 psi | 86% | 2825 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,617 psi | 78% | 2753 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 86% | 57,653 psi | 90% | 2785 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,493 psi | 90% | 2884 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,838 psi | 84% | 2887 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,549 psi | 85% | 2940 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,288 psi | 85% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,260 psi | 88% | 2900 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,497 psi | 68% | 2861 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,462 psi | 85% | 2799 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,983 psi | 85% | 2828 fps | 97.7% |
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% | 49,792 psi | 78% | 2648 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,645 psi | 75% | 2644 fps | 97.2% |
| Accurate 3100 | <<locked>> | 88% | 34,214 psi | 54% | 2464 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 47,137 psi | 74% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,621 psi | 56% | 2510 fps | 97.6% |
| Accurate High Country | <<locked>> | 96% | 48,689 psi | 76% | 2861 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 52,533 psi | 82% | 2769 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,715 psi | 70% | 2625 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 45,092 psi | 71% | 2713 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 98% | 49,182 psi | 77% | 2815 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,849 psi | 77% | 2828 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,063 psi | 71% | 2710 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,005 psi | 71% | 2651 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,095 psi | 75% | 2713 fps | 99.9% |
| Alliant Reloder-16 | 54.2 gr | 80% | 34,882 psi | 55% | 2520 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,378 psi | 62% | 2644 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,512 psi | 70% | 2703 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 41,800 psi | 66% | 2694 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,180 psi | 43% | 2329 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 92% | 32,793 psi | 51% | 2500 fps | 95% |
| Alliant Reloder-26 | 62.9 gr | 84% | 31,125 psi | 49% | 2500 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,170 psi | 82% | 2782 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 43,976 psi | 69% | 2736 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 45,165 psi | 71% | 2657 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 41,800 psi | 66% | 2694 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 40,030 psi | 63% | 2533 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 45,614 psi | 71% | 2667 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 37,521 psi | 59% | 2556 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 82% | 43,352 psi | 68% | 2635 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 98% | 52,562 psi | 82% | 2818 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 51,590 psi | 81% | 2805 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 53,113 psi | 83% | 2779 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,518 psi | 51% | 2421 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,690 psi | 78% | 2762 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,262 psi | 62% | 2621 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 43% | 1555 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,705 psi | 79% | 2726 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,606 psi | 84% | 2756 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,021 psi | 74% | 2657 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,124 psi | 77% | 2680 fps | 98.2% |
| IMR 4350 | <<locked>> | 84% | 40,538 psi | 64% | 2566 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,278 psi | 65% | 2559 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 34,287 psi | 54% | 2467 fps | 97.2% |
| IMR 4895 | <<locked>> | 80% | 49,313 psi | 77% | 2743 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,213 psi | 80% | 2762 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 80% | 52,707 psi | 83% | 2743 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,648 psi | 81% | 2697 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,166 psi | 74% | 2657 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,914 psi | 61% | 2513 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 37,144 psi | 58% | 2490 fps | 95.4% |
| Lovex S071 | <<locked>> | 94% | 35,230 psi | 55% | 2487 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 51,401 psi | 81% | 2713 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,982 psi | 81% | 2713 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,442 psi | 74% | 2703 fps | 100% |
| Norma 204 | <<locked>> | 88% | 45,905 psi | 72% | 2710 fps | 95.8% |
| Norma MRP | <<locked>> | 90% | 38,464 psi | 60% | 2654 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 35,549 psi | 56% | 2507 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 80% | 47,500 psi | 74% | 2720 fps | 100% |
| Ramshot Hunter | <<locked>> | 80% | 34,461 psi | 54% | 2490 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 98% | 41,408 psi | 65% | 2667 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 43% | 1591 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,614 psi | 71% | 2651 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,735 psi | 81% | 2831 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,843 psi | 66% | 2700 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,346 psi | 55% | 2526 fps | 97.2% |
| ReloadSwiss RS 70 | 59.3 gr | 80% | 34,461 psi | 54% | 2530 fps | 96.3% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,218 psi | 60% | 2671 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 48,965 psi | 77% | 2667 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,554 psi | 67% | 2608 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 94% | 49,806 psi | 78% | 2746 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 92% | 43,685 psi | 68% | 2690 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 40,030 psi | 63% | 2533 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,914 psi | 61% | 2513 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,707 psi | 83% | 2743 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,166 psi | 74% | 2657 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,144 psi | 58% | 2490 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,540 psi | 68% | 2657 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,316 psi | 84% | 2769 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,966 psi | 80% | 2740 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,315 psi | 82% | 2651 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,135 psi | 69% | 2523 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,029 psi | 60% | 2457 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,265 psi | 68% | 2684 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 52,011 psi | 82% | 2651 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,040 psi | 83% | 2759 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,975 psi | 67% | 2605 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 51,271 psi | 80% | 2740 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 32,053 psi | 50% | 2464 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 38,827 psi | 61% | 2559 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 52,837 psi | 83% | 2635 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,124 psi | 77% | 2635 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,342 psi | 77% | 2648 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,988 psi | 64% | 2539 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,941 psi | 58% | 2510 fps | 97.8% |
| Vihtavuori N165 | <<locked>> | 94% | 40,683 psi | 64% | 2592 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 47,601 psi | 75% | 2641 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,419 psi | 57% | 2510 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 80% | 27,862 psi | 44% | 2352 fps | 95.2% |
| Vihtavuori N560 | <<locked>> | 98% | 51,097 psi | 80% | 2881 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,143 psi | 57% | 2480 fps | 99.3% |
| Winchester 760 | <<locked>> | 80% | 37,681 psi | 59% | 2559 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,643 psi | 40% | 2356 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,894 psi | 80% | 2746 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,772 psi | 69% | 2654 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 104 powders for .300 WSM loaded with the .308 | 180gr | Remington SP Core-Lokt. Alliant Reloder-26 delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,742 fps to 3,002 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 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, 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, Alliant Reloder-26, Alliant Reloder-16 rank at the top here: for .300 WSM with the .308 | 180gr | Remington SP Core-Lokt 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.