Load Specifications
Load data in caliber .300 WSM with .308 | 165gr | Barnes X BT bullet and 98 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.
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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% | 57,363 psi | 90% | 2795 fps | 100% |
| Accurate 2495 | <<locked>> | 84% | 54,302 psi | 85% | 2792 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,347 psi | 88% | 2877 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,347 psi | 88% | 2877 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 55,883 psi | 88% | 2828 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,601 psi | 75% | 2799 fps | 97.6% |
| Accurate 4064 | <<locked>> | 88% | 57,667 psi | 90% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 56,710 psi | 89% | 2969 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 56,043 psi | 88% | 2900 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,753 psi | 89% | 2897 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,940 psi | 85% | 2933 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,766 psi | 86% | 2848 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,318 psi | 88% | 2825 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,521 psi | 87% | 3022 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 57,537 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,491 psi | 85% | 2897 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,840 psi | 89% | 3015 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,679 psi | 86% | 2999 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,113 psi | 83% | 2927 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,382 psi | 70% | 2818 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,038 psi | 78% | 2995 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,666 psi | 87% | 2913 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 55,085 psi | 86% | 2894 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 54,563 psi | 86% | 2861 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,231 psi | 88% | 2828 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,650 psi | 86% | 2881 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,666 psi | 87% | 2907 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 92% | 56,608 psi | 89% | 2982 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 96% | 56,927 psi | 89% | 2940 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 84% | 56,594 psi | 89% | 2910 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,898 psi | 89% | 2940 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,420 psi | 88% | 2949 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,216 psi | 87% | 2989 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,289 psi | 57% | 1781 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,536 psi | 89% | 2897 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,695 psi | 87% | 2874 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,840 psi | 88% | 2874 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,810 psi | 86% | 2841 fps | 97.9% |
| IMR 4350 | <<locked>> | 96% | 54,650 psi | 86% | 2884 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,883 psi | 88% | 2887 fps | 98% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,114 psi | 85% | 2913 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 55,854 psi | 88% | 2927 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,766 psi | 86% | 2848 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,579 psi | 89% | 2881 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,027 psi | 86% | 2822 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,956 psi | 89% | 2884 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,130 psi | 88% | 2890 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 57,203 psi | 90% | 2927 fps | 98.5% |
| Norma 201 | <<locked>> | 84% | 55,303 psi | 87% | 2851 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,477 psi | 87% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,116 psi | 90% | 2933 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,201 psi | 87% | 2933 fps | 96.3% |
| Norma MRPᴾ | <<locked>> | 100% | 49,530 psi | 78% | 2946 fps | 97% |
| Norma URP | <<locked>> | 96% | 55,245 psi | 87% | 2953 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 57,653 psi | 90% | 2959 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 57,174 psi | 90% | 2995 fps | 99.1% |
| Ramshot TAC | <<locked>> | 82% | 54,911 psi | 86% | 2867 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,795 psi | 86% | 2887 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,854 psi | 58% | 1824 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,405 psi | 87% | 2884 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,940 psi | 86% | 2963 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,302 psi | 85% | 2995 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,898 psi | 88% | 2986 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,795 psi | 86% | 3009 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 82% | 56,608 psi | 89% | 2831 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,898 psi | 88% | 2848 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,187 psi | 86% | 2890 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,098 psi | 82% | 2910 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 92% | 54,563 psi | 86% | 2861 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,130 psi | 88% | 2890 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,579 psi | 89% | 2881 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,956 psi | 89% | 2884 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,203 psi | 90% | 2927 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,883 psi | 88% | 2943 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,522 psi | 90% | 2904 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,346 psi | 85% | 2871 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,985 psi | 88% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,246 psi | 88% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,260 psi | 88% | 2841 fps | 98.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,605 psi | 81% | 2904 fps | 96% |
| Somchem S335 | <<locked>> | 84% | 55,738 psi | 87% | 2779 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,797 psi | 89% | 2890 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,201 psi | 87% | 2887 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,971 psi | 89% | 3005 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,156 psi | 83% | 2894 fps | 97.2% |
| Unknown powder | <<locked>> | 94% | 55,767 psi | 87% | 2953 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 86% | 55,840 psi | 88% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,724 psi | 87% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,100 psi | 86% | 2815 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 56,246 psi | 88% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,478 psi | 89% | 2927 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 86% | 54,839 psi | 86% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,985 psi | 89% | 2976 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,458 psi | 78% | 2900 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,232 psi | 90% | 2917 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,608 psi | 89% | 2982 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,350 psi | 63% | 2851 fps | 99.9% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,897 psi | 86% | 2904 fps | 96.3% |
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 2015 | <<locked>> | 80% | 53,954 psi | 85% | 2749 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 48,254 psi | 76% | 2700 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,765 psi | 83% | 2828 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,765 psi | 83% | 2828 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,456 psi | 73% | 2671 fps | 95.3% |
| Accurate 3100 | <<locked>> | 94% | 39,204 psi | 61% | 2638 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 45,585 psi | 71% | 2700 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,069 psi | 53% | 2536 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 49,777 psi | 78% | 2799 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 42,496 psi | 67% | 2648 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 50,778 psi | 80% | 2877 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,619 psi | 81% | 2799 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,823 psi | 83% | 2779 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,542 psi | 71% | 2841 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,786 psi | 67% | 2680 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,542 psi | 71% | 2743 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,373 psi | 52% | 2530 fps | 95.3% |
| Alliant Reloder-17 | 54.8 gr | 80% | 37,231 psi | 58% | 2661 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,024 psi | 78% | 2871 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 86% | 29,776 psi | 47% | 2457 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 35,911 psi | 56% | 2684 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,023 psi | 77% | 2805 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 43,149 psi | 68% | 2694 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 45,832 psi | 72% | 2707 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,069 psi | 83% | 2779 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,213 psi | 80% | 2828 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,294 psi | 68% | 2687 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 84% | 43,729 psi | 69% | 2753 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 90% | 47,848 psi | 75% | 2785 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 50,285 psi | 79% | 2808 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,154 psi | 49% | 2441 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,758 psi | 69% | 2736 fps | 99.7% |
| Hodgdon Superformance | 63.7 gr | 88% | 45,237 psi | 71% | 2805 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 43% | 1594 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,599 psi | 70% | 2697 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 46,456 psi | 73% | 2733 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,785 psi | 65% | 2625 fps | 98.5% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,685 psi | 68% | 2638 fps | 95.5% |
| IMR 4350 | <<locked>> | 90% | 45,774 psi | 72% | 2730 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,440 psi | 70% | 2684 fps | 95.6% |
| IMR 4831 | <<locked>> | 84% | 33,837 psi | 53% | 2516 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 46,644 psi | 73% | 2769 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 51,619 psi | 81% | 2799 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,951 psi | 78% | 2782 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,110 psi | 77% | 2726 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 45,049 psi | 71% | 2690 fps | 99.8% |
| Lovex S065 | <<locked>> | 80% | 37,521 psi | 59% | 2536 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 42,627 psi | 67% | 2667 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 49,298 psi | 77% | 2753 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,429 psi | 77% | 2753 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,947 psi | 70% | 2730 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 51,648 psi | 81% | 2874 fps | 95.5% |
| Norma MRP | <<locked>> | 96% | 43,642 psi | 68% | 2828 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 33,707 psi | 53% | 2526 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 44,454 psi | 70% | 2743 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 39,566 psi | 62% | 2671 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 51,561 psi | 81% | 2812 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,445 psi | 81% | 2831 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,615 psi | 43% | 1631 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,381 psi | 68% | 2667 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,167 psi | 75% | 2848 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,436 psi | 62% | 2723 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,607 psi | 56% | 2602 fps | 95.8% |
| ReloadSwiss RS 70 | 58.4 gr | 84% | 37,391 psi | 59% | 2654 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 53,635 psi | 84% | 2789 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,934 psi | 74% | 2703 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,596 psi | 64% | 2638 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 98% | 48,950 psi | 77% | 2854 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 86% | 45,832 psi | 72% | 2707 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,521 psi | 59% | 2536 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,951 psi | 78% | 2782 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,049 psi | 71% | 2690 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 42,627 psi | 67% | 2667 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,973 psi | 64% | 2677 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,531 psi | 79% | 2792 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,138 psi | 75% | 2766 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,951 psi | 78% | 2690 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,076 psi | 66% | 2559 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,932 psi | 69% | 2631 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 48,501 psi | 76% | 2848 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 49,806 psi | 78% | 2694 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,951 psi | 78% | 2785 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 41,133 psi | 64% | 2638 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 30,618 psi | 48% | 2487 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 44,092 psi | 69% | 2733 fps | 95% |
| Unknown powder | <<locked>> | 80% | 36,318 psi | 57% | 2579 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 47,137 psi | 74% | 2635 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,673 psi | 73% | 2680 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,209 psi | 72% | 2680 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,462 psi | 56% | 2493 fps | 99% |
| Vihtavuori N160 | <<locked>> | 80% | 36,390 psi | 57% | 2556 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 80% | 45,919 psi | 72% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,927 psi | 58% | 2598 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 86% | 32,213 psi | 50% | 2536 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,563 psi | 54% | 2497 fps | 97.8% |
| Winchester 760 | <<locked>> | 84% | 43,729 psi | 69% | 2753 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,892 psi | 47% | 2539 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 98% | 51,227 psi | 80% | 2848 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 114 powders for .300 WSM loaded with the .308 | 165gr | Barnes X BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,022 fps; across all powders the maximum-charge window runs from 1,781 fps to 3,022 fps. Accurate 3100 gives the best case fill at 100 %, and 114 of the 114 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 165.0 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, 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 | 165gr | Barnes X BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Alliant Reloder-22, Bofors RP15 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.