Load Specifications
Load data in caliber .300 WSM with .308 | 168gr | Berger Hybrid Target bullet and 103 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% | 54,694 psi | 86% | 2759 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,580 psi | 90% | 2835 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,450 psi | 90% | 2890 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,319 psi | 90% | 2848 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,425 psi | 70% | 2743 fps | 97.2% |
| Accurate 4064 | <<locked>> | 90% | 57,638 psi | 90% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,740 psi | 90% | 2982 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 57,363 psi | 90% | 2917 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,984 psi | 86% | 2867 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,156 psi | 82% | 2900 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,246 psi | 88% | 2864 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,609 psi | 90% | 2835 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,450 psi | 90% | 3045 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,303 psi | 87% | 2890 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,651 psi | 87% | 2910 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,868 psi | 86% | 2982 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,275 psi | 88% | 3015 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,995 psi | 80% | 2887 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,148 psi | 66% | 2772 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,587 psi | 75% | 2949 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,348 psi | 90% | 2936 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,956 psi | 88% | 2907 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,695 psi | 87% | 2877 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,491 psi | 85% | 2799 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,883 psi | 88% | 2897 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 55,216 psi | 87% | 2940 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 56,246 psi | 88% | 2844 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,681 psi | 89% | 2920 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 54,636 psi | 86% | 2946 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 96% | 55,013 psi | 86% | 2907 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 84% | 54,491 psi | 85% | 2877 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,940 psi | 86% | 2907 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,288 psi | 85% | 2910 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,392 psi | 90% | 3018 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,824 psi | 56% | 1772 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,505 psi | 85% | 2861 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,826 psi | 89% | 2884 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,058 psi | 89% | 2887 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,362 psi | 88% | 2864 fps | 98.4% |
| IMR 4350 | <<locked>> | 98% | 56,289 psi | 88% | 2907 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,479 psi | 90% | 2907 fps | 98.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,561 psi | 81% | 2871 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 57,029 psi | 89% | 2940 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,246 psi | 88% | 2864 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,450 psi | 90% | 2890 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,666 psi | 89% | 2841 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,592 psi | 86% | 2848 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,087 psi | 89% | 2900 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 54,694 psi | 86% | 2887 fps | 98.4% |
| Norma 201 | <<locked>> | 86% | 56,130 psi | 88% | 2861 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,739 psi | 89% | 2861 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,868 psi | 86% | 2897 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,956 psi | 89% | 2956 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 47,195 psi | 74% | 2900 fps | 96.8% |
| Norma URP | <<locked>> | 98% | 56,449 psi | 88% | 2966 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,564 psi | 87% | 2923 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,216 psi | 87% | 2963 fps | 99% |
| Ramshot TAC | <<locked>> | 84% | 56,463 psi | 88% | 2887 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,333 psi | 88% | 2904 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,971 psi | 89% | 2867 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,289 psi | 57% | 1811 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,855 psi | 89% | 2904 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,507 psi | 89% | 2982 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,912 psi | 88% | 3012 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,450 psi | 90% | 3002 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,594 psi | 89% | 3031 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,913 psi | 89% | 2838 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,782 psi | 89% | 2861 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,825 psi | 87% | 2900 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,792 psi | 78% | 2867 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 94% | 55,695 psi | 87% | 2877 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,087 psi | 89% | 2900 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,450 psi | 90% | 2890 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,592 psi | 86% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,694 psi | 86% | 2887 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,508 psi | 90% | 2959 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,027 psi | 86% | 2867 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,941 psi | 88% | 2890 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,305 psi | 90% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,331 psi | 85% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,377 psi | 90% | 2858 fps | 98.5% |
| Somchem S321 | <<locked>> | 82% | 57,624 psi | 90% | 2897 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,884 psi | 89% | 2792 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,694 psi | 86% | 2854 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,173 psi | 88% | 2897 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,795 psi | 86% | 2969 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,763 psi | 80% | 2851 fps | 97% |
| Unknown powder | <<locked>> | 96% | 57,464 psi | 90% | 2972 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 82% | 56,014 psi | 88% | 2743 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,029 psi | 89% | 2772 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,666 psi | 89% | 2822 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,434 psi | 88% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 57,450 psi | 90% | 2874 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,520 psi | 85% | 2890 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 55,956 psi | 88% | 2871 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,246 psi | 88% | 2858 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,607 psi | 86% | 2936 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,804 psi | 73% | 2854 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,390 psi | 87% | 2884 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 57,624 psi | 90% | 2923 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,636 psi | 86% | 2946 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,855 psi | 59% | 2792 fps | 99.7% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,881 psi | 83% | 2871 fps | 96.2% |
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% | 51,561 psi | 81% | 2717 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,324 psi | 69% | 2644 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,096 psi | 79% | 2785 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,135 psi | 69% | 2628 fps | 95.1% |
| Accurate 3100 | <<locked>> | 96% | 38,798 psi | 61% | 2635 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 41,916 psi | 66% | 2644 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 33,315 psi | 52% | 2526 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 47,659 psi | 75% | 2762 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,393 psi | 63% | 2605 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 98% | 48,907 psi | 77% | 2841 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,705 psi | 78% | 2766 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,662 psi | 79% | 2743 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,540 psi | 68% | 2802 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,321 psi | 63% | 2631 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,265 psi | 68% | 2697 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 33,373 psi | 52% | 2539 fps | 95.7% |
| Alliant Reloder-17 | 55.2 gr | 80% | 34,824 psi | 55% | 2605 fps | 98% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,863 psi | 75% | 2828 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,080 psi | 46% | 2444 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,723 psi | 56% | 2684 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,007 psi | 74% | 2766 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 40,089 psi | 63% | 2638 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 43,569 psi | 68% | 2664 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,285 psi | 80% | 2749 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,849 psi | 77% | 2789 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,655 psi | 65% | 2703 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 80% | 52,736 psi | 83% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,828 psi | 64% | 2641 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 84% | 41,466 psi | 65% | 2707 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 90% | 45,847 psi | 72% | 2746 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 48,109 psi | 75% | 2772 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,863 psi | 45% | 2385 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,611 psi | 65% | 2694 fps | 99.6% |
| Hodgdon Superformance | 64.2 gr | 88% | 42,960 psi | 67% | 2759 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,585 psi | 42% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,757 psi | 67% | 2661 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 44,019 psi | 69% | 2690 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,784 psi | 62% | 2589 fps | 98.3% |
| IMR 4166 Enduron | <<locked>> | 82% | 41,814 psi | 66% | 2602 fps | 95.3% |
| IMR 4350 | <<locked>> | 90% | 43,729 psi | 69% | 2690 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,322 psi | 66% | 2641 fps | 95.3% |
| IMR 4831 | <<locked>> | 86% | 33,199 psi | 52% | 2507 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 44,353 psi | 70% | 2730 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 49,705 psi | 78% | 2766 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,181 psi | 74% | 2740 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,137 psi | 74% | 2690 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 42,438 psi | 67% | 2644 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 37,217 psi | 58% | 2536 fps | 95.4% |
| Lovex S070 | <<locked>> | 86% | 40,089 psi | 63% | 2621 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 46,543 psi | 73% | 2710 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,978 psi | 74% | 2713 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,641 psi | 67% | 2687 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 49,806 psi | 78% | 2841 fps | 95.4% |
| Norma MRP | <<locked>> | 98% | 44,077 psi | 69% | 2838 fps | 95.9% |
| Norma URP | <<locked>> | 82% | 33,489 psi | 52% | 2526 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 42,322 psi | 66% | 2700 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 39,711 psi | 62% | 2677 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 49,617 psi | 78% | 2776 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,371 psi | 77% | 2795 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,388 psi | 84% | 2812 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 42% | 1621 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,191 psi | 65% | 2625 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,948 psi | 72% | 2808 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,057 psi | 58% | 2671 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,040 psi | 52% | 2539 fps | 95% |
| ReloadSwiss RS 70 | 58.9 gr | 84% | 35,143 psi | 55% | 2602 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 50,531 psi | 79% | 2743 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,425 psi | 70% | 2661 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,811 psi | 59% | 2582 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 46,572 psi | 73% | 2808 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 43,569 psi | 68% | 2664 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,217 psi | 58% | 2536 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,181 psi | 74% | 2740 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,438 psi | 67% | 2644 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 40,089 psi | 63% | 2621 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,783 psi | 61% | 2635 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,066 psi | 75% | 2753 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,050 psi | 72% | 2730 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,732 psi | 75% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,958 psi | 63% | 2523 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,481 psi | 65% | 2585 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 53,983 psi | 85% | 2844 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,384 psi | 74% | 2654 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,863 psi | 75% | 2746 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 38,464 psi | 60% | 2585 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 28,166 psi | 44% | 2421 fps | 96.9% |
| Somchem S385 | <<locked>> | 96% | 44,411 psi | 70% | 2740 fps | 95.4% |
| Unknown powder | <<locked>> | 82% | 36,390 psi | 57% | 2585 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 52,620 psi | 82% | 2697 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,078 psi | 71% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,063 psi | 69% | 2638 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,845 psi | 69% | 2638 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,924 psi | 52% | 2438 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 80% | 34,069 psi | 53% | 2507 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 52,489 psi | 82% | 2818 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,482 psi | 68% | 2657 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,505 psi | 54% | 2543 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 31,386 psi | 49% | 2523 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,416 psi | 51% | 2451 fps | 97.4% |
| Winchester 748 | <<locked>> | 80% | 53,853 psi | 84% | 2867 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 41,466 psi | 65% | 2707 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 92% | 29,080 psi | 46% | 2523 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 98% | 49,139 psi | 77% | 2812 fps | 95.3% |
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 | Berger Hybrid Target. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,045 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, 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 Hybrid 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.