Load Specifications
Load data in caliber .300 WSM with .308 | 168gr | Berger BT Target bullet and 100 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% | 55,448 psi | 87% | 2772 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,679 psi | 86% | 2802 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,549 psi | 85% | 2854 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,549 psi | 85% | 2815 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,324 psi | 71% | 2766 fps | 97.5% |
| Accurate 4064 | <<locked>> | 88% | 54,839 psi | 86% | 2854 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,100 psi | 86% | 2946 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 54,549 psi | 85% | 2881 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,767 psi | 87% | 2884 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,026 psi | 83% | 2920 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,913 psi | 89% | 2877 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,737 psi | 86% | 2802 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,447 psi | 85% | 3002 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,188 psi | 88% | 2910 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,478 psi | 89% | 2930 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,912 psi | 88% | 3002 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 57,348 psi | 90% | 3035 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,866 psi | 81% | 2907 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,975 psi | 67% | 2795 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,646 psi | 76% | 2972 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,476 psi | 85% | 2897 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 56,913 psi | 89% | 2923 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,695 psi | 89% | 2900 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,129 psi | 86% | 2812 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,753 psi | 89% | 2910 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 56,985 psi | 89% | 2858 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,027 psi | 85% | 2884 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 92% | 55,332 psi | 87% | 2963 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 96% | 56,043 psi | 88% | 2927 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 84% | 55,172 psi | 86% | 2890 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,043 psi | 88% | 2927 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,172 psi | 86% | 2930 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,389 psi | 85% | 2976 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,795 psi | 56% | 1775 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,405 psi | 87% | 2881 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 57,667 psi | 90% | 2900 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,476 psi | 85% | 2854 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,159 psi | 90% | 2881 fps | 98.6% |
| IMR 4350 | <<locked>> | 98% | 56,985 psi | 89% | 2923 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,100 psi | 86% | 2877 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,605 psi | 82% | 2890 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 54,476 psi | 85% | 2907 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,913 psi | 89% | 2877 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,853 psi | 86% | 2858 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,290 psi | 90% | 2858 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,187 psi | 86% | 2861 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,665 psi | 86% | 2871 fps | 99.2% |
| Lovex S070 | <<locked>> | 96% | 55,709 psi | 87% | 2910 fps | 98.6% |
| Norma 201 | <<locked>> | 86% | 56,797 psi | 89% | 2874 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,392 psi | 90% | 2874 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,724 psi | 87% | 2917 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,302 psi | 85% | 2923 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 48,022 psi | 75% | 2920 fps | 97.1% |
| Norma URP | <<locked>> | 98% | 57,493 psi | 90% | 2986 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 56,637 psi | 89% | 2943 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,159 psi | 88% | 2979 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 57,203 psi | 90% | 2904 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,159 psi | 90% | 2923 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,492 psi | 57% | 1821 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,215 psi | 85% | 2867 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,508 psi | 90% | 3002 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,985 psi | 89% | 3031 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,607 psi | 86% | 2966 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,664 psi | 84% | 2992 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 84% | 57,653 psi | 90% | 2851 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,435 psi | 90% | 2874 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,710 psi | 89% | 2913 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,691 psi | 79% | 2890 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 56,695 psi | 89% | 2900 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,665 psi | 86% | 2871 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,853 psi | 86% | 2858 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,187 psi | 86% | 2861 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,709 psi | 87% | 2910 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,824 psi | 86% | 2923 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,854 psi | 88% | 2884 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,768 psi | 89% | 2907 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,694 psi | 86% | 2762 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,216 psi | 87% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,737 psi | 86% | 2825 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,212 psi | 79% | 2884 fps | 96.1% |
| Somchem S335 | <<locked>> | 86% | 57,522 psi | 90% | 2805 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,492 psi | 87% | 2871 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,029 psi | 89% | 2913 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,956 psi | 88% | 2986 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,677 psi | 81% | 2871 fps | 97.3% |
| Unknown powder | <<locked>> | 94% | 54,694 psi | 86% | 2936 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 82% | 56,492 psi | 89% | 2753 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,725 psi | 90% | 2785 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,406 psi | 90% | 2835 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,319 psi | 90% | 2844 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,737 psi | 86% | 2841 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,245 psi | 87% | 2907 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 56,623 psi | 89% | 2884 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,087 psi | 89% | 2874 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,608 psi | 87% | 2956 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,659 psi | 75% | 2871 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,188 psi | 88% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,332 psi | 87% | 2963 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,551 psi | 60% | 2815 fps | 99.8% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,925 psi | 85% | 2894 fps | 96.6% |
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% | 52,083 psi | 82% | 2726 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,049 psi | 71% | 2657 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,010 psi | 80% | 2802 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,831 psi | 70% | 2648 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 36,898 psi | 58% | 2595 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,641 psi | 67% | 2657 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,691 psi | 50% | 2487 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 48,312 psi | 76% | 2776 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 41,002 psi | 64% | 2625 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 98% | 49,530 psi | 78% | 2861 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,357 psi | 79% | 2782 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,256 psi | 80% | 2756 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,367 psi | 70% | 2822 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,930 psi | 64% | 2648 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,903 psi | 69% | 2713 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,836 psi | 50% | 2500 fps | 95.1% |
| Alliant Reloder-17 | 56.1 gr | 80% | 35,549 psi | 56% | 2628 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,733 psi | 76% | 2851 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,486 psi | 46% | 2461 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,069 psi | 53% | 2644 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,572 psi | 75% | 2782 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 40,959 psi | 64% | 2657 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 44,077 psi | 69% | 2680 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,938 psi | 81% | 2762 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,734 psi | 78% | 2808 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 53,476 psi | 84% | 2808 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,437 psi | 65% | 2657 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 84% | 42,221 psi | 66% | 2726 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 90% | 46,369 psi | 73% | 2762 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 48,791 psi | 76% | 2789 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,196 psi | 46% | 2398 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,293 psi | 66% | 2710 fps | 99.7% |
| Hodgdon Superformance | 65.2 gr | 88% | 43,743 psi | 69% | 2782 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 42% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,192 psi | 68% | 2674 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 44,802 psi | 70% | 2710 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,219 psi | 63% | 2602 fps | 98.5% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,380 psi | 66% | 2621 fps | 95.6% |
| IMR 4350 | <<locked>> | 90% | 44,425 psi | 70% | 2710 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,033 psi | 67% | 2661 fps | 95.7% |
| IMR 4831 | <<locked>> | 84% | 31,792 psi | 50% | 2474 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 45,020 psi | 71% | 2746 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 50,357 psi | 79% | 2782 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,892 psi | 75% | 2756 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,776 psi | 75% | 2707 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 43,091 psi | 68% | 2661 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,753 psi | 59% | 2556 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 40,814 psi | 64% | 2641 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 47,181 psi | 74% | 2723 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,688 psi | 75% | 2730 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,294 psi | 68% | 2703 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 50,705 psi | 79% | 2861 fps | 95.8% |
| Norma MRP | <<locked>> | 96% | 42,105 psi | 66% | 2799 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 34,084 psi | 53% | 2543 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 43,091 psi | 68% | 2720 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 37,956 psi | 59% | 2641 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 50,357 psi | 79% | 2795 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,966 psi | 78% | 2812 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,209 psi | 43% | 1627 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,727 psi | 65% | 2641 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,673 psi | 73% | 2825 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,797 psi | 59% | 2690 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,562 psi | 53% | 2559 fps | 95.4% |
| ReloadSwiss RS 70 | 59.8 gr | 84% | 35,737 psi | 56% | 2621 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 51,314 psi | 80% | 2759 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,078 psi | 71% | 2680 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 38,435 psi | 60% | 2602 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 47,500 psi | 74% | 2831 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 44,077 psi | 69% | 2680 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,753 psi | 59% | 2556 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,892 psi | 75% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,091 psi | 68% | 2661 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,814 psi | 64% | 2641 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,349 psi | 62% | 2648 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,907 psi | 77% | 2769 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,688 psi | 73% | 2746 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,428 psi | 76% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,567 psi | 64% | 2536 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 42,221 psi | 66% | 2605 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 47,050 psi | 74% | 2828 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 48,022 psi | 75% | 2667 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,399 psi | 76% | 2762 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 39,059 psi | 61% | 2602 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 28,674 psi | 45% | 2441 fps | 97.3% |
| Somchem S385 | <<locked>> | 96% | 45,324 psi | 71% | 2759 fps | 95.8% |
| Unknown powder | <<locked>> | 80% | 34,650 psi | 54% | 2546 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 53,403 psi | 84% | 2710 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,614 psi | 71% | 2612 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,831 psi | 70% | 2654 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,527 psi | 70% | 2654 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,359 psi | 52% | 2451 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 80% | 34,650 psi | 54% | 2523 fps | 96% |
| Vihtavuori N530 | <<locked>> | 80% | 53,185 psi | 83% | 2835 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,324 psi | 69% | 2677 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,085 psi | 55% | 2562 fps | 96% |
| Vihtavuori N555 | <<locked>> | 86% | 30,081 psi | 47% | 2487 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,837 psi | 51% | 2464 fps | 97.6% |
| Winchester 760 | <<locked>> | 84% | 42,221 psi | 66% | 2726 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,833 psi | 44% | 2484 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 98% | 50,241 psi | 79% | 2835 fps | 95.8% |
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 116 powders for .300 WSM loaded with the .308 | 168gr | Berger BT Target. Alliant Reloder-17 delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,775 fps to 3,035 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 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 168.0 gr projectile in 0.308" calls for a 1:13.5 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 | 168gr | Berger BT Target 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.