Load Specifications
Load data in caliber .300 WSM with .308 | 168gr | Nosler Ballistic Silver Tip bullet and 100 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H380, ReloadSwiss RS 60 and ReloadSwiss RS 70.
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% | 54,737 psi | 86% | 2759 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,334 psi | 90% | 2831 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,071 psi | 86% | 2848 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,072 psi | 88% | 2841 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,280 psi | 69% | 2740 fps | 97.1% |
| Accurate 4064 | <<locked>> | 90% | 57,406 psi | 90% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,566 psi | 90% | 2976 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 57,159 psi | 90% | 2913 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,795 psi | 86% | 2861 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2897 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,028 psi | 88% | 2861 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,334 psi | 90% | 2831 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,276 psi | 90% | 3041 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,085 psi | 86% | 2887 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,448 psi | 87% | 2907 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,679 psi | 86% | 2979 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,086 psi | 88% | 3012 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,821 psi | 80% | 2881 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,003 psi | 66% | 2769 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,210 psi | 74% | 2940 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,174 psi | 90% | 2930 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,767 psi | 87% | 2904 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,535 psi | 87% | 2874 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,682 psi | 90% | 2841 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,695 psi | 87% | 2894 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,507 psi | 89% | 2917 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 56,347 psi | 88% | 2972 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 94% | 56,985 psi | 89% | 2933 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 54,273 psi | 85% | 2871 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,752 psi | 86% | 2904 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,609 psi | 90% | 2959 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,985 psi | 89% | 3012 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 56% | 1768 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,347 psi | 87% | 2874 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,636 psi | 86% | 2854 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,711 psi | 90% | 2897 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,551 psi | 90% | 2877 fps | 98.5% |
| IMR 4350 | <<locked>> | 98% | 56,159 psi | 88% | 2904 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,334 psi | 90% | 2904 fps | 98.5% |
| IMR 4831 | <<locked>> | 98% | 54,302 psi | 85% | 2913 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 56,884 psi | 89% | 2936 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,028 psi | 88% | 2861 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,232 psi | 90% | 2887 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,463 psi | 88% | 2838 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,375 psi | 85% | 2844 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,927 psi | 89% | 2897 fps | 99.3% |
| Lovex S070 | <<locked>> | 96% | 54,549 psi | 85% | 2884 fps | 98.4% |
| Norma 201 | <<locked>> | 86% | 55,970 psi | 88% | 2858 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,521 psi | 89% | 2854 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,665 psi | 86% | 2894 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,840 psi | 89% | 2956 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 47,108 psi | 74% | 2897 fps | 96.7% |
| Norma URP | <<locked>> | 98% | 56,217 psi | 88% | 2963 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 55,390 psi | 87% | 2920 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,013 psi | 86% | 2956 fps | 99% |
| Ramshot TAC | <<locked>> | 84% | 56,289 psi | 88% | 2884 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,144 psi | 88% | 2900 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,782 psi | 89% | 2864 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,216 psi | 57% | 1808 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,666 psi | 89% | 2897 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,275 psi | 88% | 2979 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,724 psi | 87% | 3009 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,319 psi | 90% | 2999 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,463 psi | 88% | 3028 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,985 psi | 89% | 2838 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,565 psi | 89% | 2858 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,637 psi | 87% | 2894 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,603 psi | 78% | 2864 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 94% | 55,535 psi | 87% | 2874 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,927 psi | 89% | 2897 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,232 psi | 90% | 2887 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,375 psi | 85% | 2844 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,549 psi | 85% | 2884 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,348 psi | 90% | 2956 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,853 psi | 86% | 2861 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,753 psi | 87% | 2887 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,363 psi | 90% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,725 psi | 90% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,174 psi | 90% | 2851 fps | 98.5% |
| Somchem S321 | <<locked>> | 82% | 57,493 psi | 90% | 2894 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,681 psi | 89% | 2789 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,505 psi | 85% | 2851 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,985 psi | 88% | 2894 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,607 psi | 86% | 2963 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,372 psi | 79% | 2844 fps | 96.9% |
| Vihtavuori N130 | <<locked>> | 82% | 56,942 psi | 89% | 2749 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,682 psi | 90% | 2776 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,420 psi | 88% | 2818 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,087 psi | 89% | 2835 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,290 psi | 90% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,172 psi | 86% | 2907 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 84% | 56,594 psi | 89% | 2861 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,288 psi | 87% | 2831 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,288 psi | 85% | 2910 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,441 psi | 73% | 2844 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,230 psi | 87% | 2881 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,898 psi | 89% | 2910 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,637 psi | 89% | 2976 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,768 psi | 59% | 2789 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,695 psi | 87% | 2894 fps | 100% |
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% | 51,343 psi | 80% | 2713 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,324 psi | 69% | 2644 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,387 psi | 81% | 2795 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,890 psi | 72% | 2671 fps | 95.5% |
| Accurate 3100 | <<locked>> | 96% | 38,595 psi | 60% | 2628 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 41,930 psi | 66% | 2641 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 33,112 psi | 52% | 2520 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 47,442 psi | 74% | 2756 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,422 psi | 63% | 2608 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 98% | 48,791 psi | 76% | 2838 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,530 psi | 78% | 2759 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,415 psi | 79% | 2740 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,352 psi | 68% | 2795 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,103 psi | 63% | 2628 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,105 psi | 68% | 2694 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 33,214 psi | 52% | 2533 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,867 psi | 55% | 2605 fps | 98% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,747 psi | 75% | 2825 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,950 psi | 45% | 2441 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,636 psi | 56% | 2680 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,818 psi | 73% | 2762 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 40,103 psi | 63% | 2635 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 43,395 psi | 68% | 2657 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,082 psi | 80% | 2746 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,704 psi | 76% | 2785 fps | 100% |
| Hodgdon H380 | 53.6 gr | 80% | 40,654 psi | 64% | 2635 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 86% | 40,495 psi | 63% | 2684 fps | 95% |
| Hodgdon H4350 | <<locked>> | 88% | 47,050 psi | 74% | 2766 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 47,906 psi | 75% | 2769 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,703 psi | 45% | 2379 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,005 psi | 69% | 2740 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 42,815 psi | 67% | 2756 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,672 psi | 42% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,847 psi | 72% | 2717 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 47,805 psi | 75% | 2756 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,438 psi | 67% | 2641 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,744 psi | 70% | 2661 fps | 96.1% |
| IMR 4350 | <<locked>> | 90% | 43,584 psi | 68% | 2687 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,366 psi | 66% | 2641 fps | 95.3% |
| IMR 4831 | <<locked>> | 82% | 32,213 psi | 50% | 2480 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 44,164 psi | 69% | 2723 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 49,530 psi | 78% | 2759 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,949 psi | 74% | 2733 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,210 psi | 74% | 2690 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 42,467 psi | 67% | 2644 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 37,043 psi | 58% | 2533 fps | 95.3% |
| Lovex S070 | <<locked>> | 86% | 39,929 psi | 63% | 2615 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,586 psi | 73% | 2707 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,760 psi | 73% | 2710 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,453 psi | 67% | 2684 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 49,632 psi | 78% | 2838 fps | 95.4% |
| Norma MRP | <<locked>> | 98% | 43,918 psi | 69% | 2831 fps | 95.8% |
| Norma URP | <<locked>> | 82% | 33,344 psi | 52% | 2520 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 42,134 psi | 66% | 2697 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 39,566 psi | 62% | 2674 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 49,443 psi | 77% | 2772 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,182 psi | 77% | 2792 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,258 psi | 83% | 2808 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 42% | 1617 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,017 psi | 64% | 2621 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,716 psi | 72% | 2802 fps | 99.2% |
| ReloadSwiss RS 60 | 55.1 gr | 80% | 37,101 psi | 58% | 2671 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 35,288 psi | 55% | 2595 fps | 95.9% |
| ReloadSwiss RS 70 | 60.1 gr | 86% | 37,463 psi | 59% | 2657 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 50,560 psi | 79% | 2743 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,222 psi | 69% | 2657 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,637 psi | 59% | 2579 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 46,441 psi | 73% | 2805 fps | 95% |
| Rottweil R 907 | <<locked>> | 86% | 43,395 psi | 68% | 2657 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,043 psi | 58% | 2533 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,949 psi | 74% | 2733 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,467 psi | 67% | 2644 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 39,929 psi | 63% | 2615 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,595 psi | 60% | 2628 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,877 psi | 75% | 2749 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,905 psi | 72% | 2726 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,514 psi | 74% | 2651 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,740 psi | 62% | 2516 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,524 psi | 65% | 2585 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 53,780 psi | 84% | 2841 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,384 psi | 74% | 2654 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,674 psi | 75% | 2743 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 38,479 psi | 60% | 2585 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 28,021 psi | 44% | 2418 fps | 96.8% |
| Somchem S385 | <<locked>> | 96% | 44,280 psi | 69% | 2733 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 53,476 psi | 84% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,921 psi | 75% | 2641 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,859 psi | 69% | 2635 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,367 psi | 70% | 2644 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,477 psi | 57% | 2516 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 32,576 psi | 51% | 2467 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 49,792 psi | 78% | 2759 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,728 psi | 67% | 2635 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 34,360 psi | 54% | 2526 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 31,227 psi | 49% | 2516 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,285 psi | 51% | 2444 fps | 97.3% |
| Winchester 748 | <<locked>> | 80% | 49,574 psi | 78% | 2802 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,683 psi | 64% | 2690 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,993 psi | 45% | 2520 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,426 psi | 71% | 2730 fps | 99.7% |
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 119 powders for .300 WSM loaded with the .308 | 168gr | Nosler Ballistic Silver Tip. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,041 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,041 fps. Accurate 3100 gives the best case fill at 100 %, and 119 of the 119 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 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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. Hodgdon H380, ReloadSwiss RS 60, ReloadSwiss RS 70 rank at the top here: for .300 WSM with the .308 | 168gr | Nosler Ballistic Silver Tip they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Alliant Reloder-22 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.