Load Specifications
Load data in caliber .300 WSM with .308 | 168gr | Hammer HHT bullet and 101 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.
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 2015 | <<locked>> | 82% | 54,244 psi | 85% | 2766 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,797 psi | 89% | 2838 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,868 psi | 86% | 2858 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,869 psi | 88% | 2851 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,077 psi | 69% | 2749 fps | 97.2% |
| Accurate 4064 | <<locked>> | 90% | 56,869 psi | 89% | 2890 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,377 psi | 90% | 2986 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 57,159 psi | 90% | 2927 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,810 psi | 86% | 2874 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,938 psi | 81% | 2910 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,144 psi | 88% | 2874 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,261 psi | 90% | 2841 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,522 psi | 90% | 3058 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,013 psi | 86% | 2897 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,332 psi | 87% | 2920 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,810 psi | 86% | 2992 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,159 psi | 88% | 3025 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,966 psi | 80% | 2897 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,771 psi | 65% | 2779 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,311 psi | 74% | 2956 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,319 psi | 90% | 2946 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,477 psi | 87% | 2913 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,550 psi | 87% | 2887 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,580 psi | 90% | 2854 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,579 psi | 87% | 2904 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,550 psi | 89% | 2930 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 56,637 psi | 89% | 2989 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 94% | 56,855 psi | 89% | 2946 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 84% | 54,317 psi | 85% | 2884 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,868 psi | 86% | 2917 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,056 psi | 85% | 2920 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,334 psi | 90% | 3028 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,708 psi | 56% | 1778 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,463 psi | 87% | 2887 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,534 psi | 85% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,244 psi | 85% | 2858 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,508 psi | 90% | 2894 fps | 98.7% |
| IMR 4350 | <<locked>> | 98% | 56,202 psi | 88% | 2920 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,493 psi | 90% | 2920 fps | 98.6% |
| IMR 4831 | <<locked>> | 98% | 54,186 psi | 85% | 2923 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 56,782 psi | 89% | 2949 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,144 psi | 88% | 2874 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,043 psi | 89% | 2897 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,376 psi | 88% | 2851 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,464 psi | 90% | 2900 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,884 psi | 89% | 2910 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 54,491 psi | 85% | 2897 fps | 98.5% |
| Norma 201 | <<locked>> | 86% | 55,550 psi | 87% | 2864 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,565 psi | 89% | 2871 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,563 psi | 86% | 2907 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,058 psi | 89% | 2972 fps | 97.1% |
| Norma MRPᴾ | <<locked>> | 100% | 47,036 psi | 74% | 2907 fps | 96.9% |
| Norma URP | <<locked>> | 98% | 56,275 psi | 88% | 2972 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,521 psi | 87% | 2936 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,245 psi | 87% | 2972 fps | 99.1% |
| Ramshot TAC | <<locked>> | 84% | 56,405 psi | 88% | 2900 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,115 psi | 88% | 2913 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,739 psi | 89% | 2874 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,114 psi | 57% | 1818 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,739 psi | 89% | 2913 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,304 psi | 88% | 2992 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,840 psi | 88% | 3022 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,450 psi | 90% | 3015 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,608 psi | 89% | 3045 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,231 psi | 88% | 2841 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,159 psi | 88% | 2864 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,317 psi | 87% | 2904 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,792 psi | 78% | 2881 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 94% | 55,550 psi | 87% | 2887 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,884 psi | 89% | 2910 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,043 psi | 89% | 2897 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,464 psi | 90% | 2900 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,491 psi | 85% | 2897 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,450 psi | 90% | 2969 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,897 psi | 86% | 2874 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,709 psi | 87% | 2900 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,246 psi | 90% | 2802 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,201 psi | 85% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,101 psi | 89% | 2864 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,313 psi | 77% | 2874 fps | 96% |
| Somchem S321 | <<locked>> | 82% | 57,377 psi | 90% | 2907 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,376 psi | 88% | 2799 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,433 psi | 85% | 2864 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,753 psi | 87% | 2904 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,607 psi | 86% | 2972 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,372 psi | 79% | 2858 fps | 97.1% |
| Vihtavuori N130 | <<locked>> | 82% | 56,623 psi | 89% | 2759 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,638 psi | 90% | 2785 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,202 psi | 88% | 2825 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,072 psi | 89% | 2844 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,392 psi | 90% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,201 psi | 87% | 2917 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 56,637 psi | 89% | 2874 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,100 psi | 86% | 2841 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,186 psi | 85% | 2923 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,441 psi | 73% | 2858 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,376 psi | 87% | 2894 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,927 psi | 89% | 2923 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,637 psi | 89% | 2989 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,492 psi | 59% | 2799 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,564 psi | 87% | 2904 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% | 50,865 psi | 80% | 2720 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,337 psi | 68% | 2641 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,213 psi | 80% | 2805 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,745 psi | 72% | 2680 fps | 95.7% |
| Accurate 3100 | <<locked>> | 96% | 38,203 psi | 60% | 2635 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 41,060 psi | 64% | 2641 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,561 psi | 51% | 2520 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 47,253 psi | 74% | 2766 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,045 psi | 63% | 2612 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 98% | 48,704 psi | 76% | 2851 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,371 psi | 77% | 2772 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,111 psi | 79% | 2746 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,308 psi | 68% | 2808 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,827 psi | 62% | 2635 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,815 psi | 67% | 2703 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,924 psi | 52% | 2539 fps | 95.6% |
| Alliant Reloder-17 | 56.2 gr | 80% | 34,490 psi | 54% | 2608 fps | 98% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,659 psi | 75% | 2838 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,543 psi | 45% | 2441 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,215 psi | 55% | 2684 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,775 psi | 73% | 2776 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 39,624 psi | 62% | 2641 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 42,989 psi | 67% | 2667 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,995 psi | 80% | 2756 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,559 psi | 76% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,263 psi | 63% | 2644 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 86% | 40,321 psi | 63% | 2694 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 88% | 46,949 psi | 74% | 2779 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 47,703 psi | 75% | 2776 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,166 psi | 44% | 2379 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,990 psi | 69% | 2753 fps | 99.8% |
| Hodgdon Superformance | 65.3 gr | 88% | 42,641 psi | 67% | 2766 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,585 psi | 42% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,716 psi | 72% | 2726 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 47,747 psi | 75% | 2766 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,076 psi | 66% | 2648 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,556 psi | 70% | 2671 fps | 96.2% |
| IMR 4350 | <<locked>> | 90% | 43,410 psi | 68% | 2697 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,134 psi | 66% | 2648 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 31,749 psi | 50% | 2484 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 43,903 psi | 69% | 2733 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 49,371 psi | 77% | 2772 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,557 psi | 73% | 2740 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,876 psi | 73% | 2697 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 41,945 psi | 66% | 2648 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 36,622 psi | 57% | 2536 fps | 95.3% |
| Lovex S070 | <<locked>> | 86% | 39,624 psi | 62% | 2625 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 45,963 psi | 72% | 2713 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,572 psi | 73% | 2720 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,192 psi | 66% | 2690 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 49,617 psi | 78% | 2851 fps | 95.6% |
| Norma MRP | <<locked>> | 96% | 40,915 psi | 64% | 2779 fps | 95% |
| Norma URP | <<locked>> | 82% | 32,996 psi | 52% | 2523 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 42,047 psi | 66% | 2707 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 39,450 psi | 62% | 2684 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 49,371 psi | 77% | 2785 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,907 psi | 77% | 2799 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,214 psi | 83% | 2822 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,847 psi | 42% | 1624 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,654 psi | 64% | 2628 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,498 psi | 71% | 2812 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,753 psi | 58% | 2677 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,766 psi | 54% | 2595 fps | 95.9% |
| ReloadSwiss RS 70 | 59.9 gr | 84% | 34,708 psi | 54% | 2602 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 49,893 psi | 78% | 2746 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,874 psi | 69% | 2664 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,159 psi | 58% | 2582 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 46,354 psi | 73% | 2818 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 86% | 42,989 psi | 67% | 2667 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,622 psi | 57% | 2536 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,557 psi | 73% | 2740 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,945 psi | 66% | 2648 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 39,624 psi | 62% | 2625 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,305 psi | 60% | 2635 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,703 psi | 75% | 2759 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,658 psi | 72% | 2733 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,456 psi | 74% | 2661 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,610 psi | 62% | 2526 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,060 psi | 64% | 2592 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,905 psi | 72% | 2812 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 53,708 psi | 84% | 2854 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,920 psi | 74% | 2661 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,587 psi | 75% | 2756 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 37,898 psi | 59% | 2589 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 27,557 psi | 43% | 2418 fps | 96.8% |
| Somchem S385 | <<locked>> | 96% | 44,034 psi | 69% | 2743 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 53,476 psi | 84% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,921 psi | 75% | 2654 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,671 psi | 68% | 2641 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,150 psi | 69% | 2651 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,143 psi | 57% | 2523 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 32,227 psi | 51% | 2474 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 49,617 psi | 78% | 2769 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,424 psi | 66% | 2641 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,910 psi | 53% | 2526 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 30,821 psi | 48% | 2516 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,995 psi | 50% | 2451 fps | 97.3% |
| Winchester 748 | <<locked>> | 80% | 49,617 psi | 78% | 2815 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,480 psi | 63% | 2697 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,558 psi | 45% | 2520 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,368 psi | 71% | 2740 fps | 99.8% |
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 119 powders for .300 WSM loaded with the .308 | 168gr | Hammer HHT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,058 fps; across all powders the maximum-charge window runs from 1,778 fps to 3,058 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 1:13.5 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 WSM with the .308 | 168gr | Hammer HHT 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.