Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 181gr | Brenneke TUG bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Accurate High Country.
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 2495 | <<locked>> | 82% | 54,955 psi | 88% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,159 psi | 90% | 2769 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,621 psi | 86% | 2805 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 55,376 psi | 89% | 2753 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,854 psi | 90% | 2858 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 54,694 psi | 88% | 2946 fps | 97.3% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 55,738 psi | 89% | 2946 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 55,361 psi | 89% | 2782 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,258 psi | 85% | 2844 fps | 97.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,491 psi | 87% | 2890 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,418 psi | 87% | 2900 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,417 psi | 86% | 2841 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,173 psi | 90% | 2805 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,434 psi | 90% | 2828 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 53,040 psi | 85% | 2861 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,302 psi | 87% | 2884 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,115 psi | 90% | 2887 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,345 psi | 86% | 2887 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,415 psi | 81% | 2825 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,772 psi | 70% | 2746 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,838 psi | 86% | 2959 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,791 psi | 78% | 2808 fps | 97% |
| Bofors RP3 | <<locked>> | 84% | 53,403 psi | 86% | 2772 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,345 psi | 86% | 2887 fps | 98.1% |
| Bofors RP7 | <<locked>> | 90% | 56,217 psi | 90% | 2808 fps | 99% |
| Hodgdon H380 | <<locked>> | 84% | 53,882 psi | 86% | 2789 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,520 psi | 87% | 2858 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 88% | 54,360 psi | 87% | 2815 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 98% | 54,578 psi | 88% | 2838 fps | 96.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,606 psi | 86% | 2822 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,447 psi | 86% | 2789 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,882 psi | 88% | 2822 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,607 psi | 88% | 2894 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,347 psi | 58% | 1736 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,593 psi | 89% | 2782 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,752 psi | 88% | 2766 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,896 psi | 86% | 2749 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 53,824 psi | 86% | 2789 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,665 psi | 88% | 2785 fps | 99.1% |
| IMR 4831 | <<locked>> | 94% | 56,246 psi | 90% | 2848 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,186 psi | 87% | 2802 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,231 psi | 90% | 2825 fps | 96.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,822 psi | 83% | 2861 fps | 96.3% |
| Lovex S060 | <<locked>> | 82% | 56,405 psi | 90% | 2753 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,940 psi | 88% | 2759 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,520 psi | 87% | 2779 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 55,767 psi | 89% | 2818 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,701 psi | 72% | 2661 fps | 98.4% |
| Norma 201 | <<locked>> | 82% | 56,362 psi | 90% | 2769 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,724 psi | 89% | 2815 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,462 psi | 87% | 2838 fps | 97.9% |
| Norma MRP | <<locked>> | 98% | 52,808 psi | 85% | 2913 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 54,520 psi | 87% | 2841 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,304 psi | 90% | 2838 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,214 psi | 84% | 2877 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 92% | 53,417 psi | 86% | 2841 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,615 psi | 75% | 2753 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 60% | 1778 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,795 psi | 86% | 2772 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,780 psi | 86% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,869 psi | 90% | 2884 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,244 psi | 87% | 2907 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,757 psi | 69% | 2766 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 82% | 53,519 psi | 86% | 2723 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,505 psi | 86% | 2769 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,984 psi | 88% | 2815 fps | 97% |
| Rottweil R 905 | <<locked>> | 98% | 55,463 psi | 89% | 2874 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 90% | 56,217 psi | 90% | 2808 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,520 psi | 87% | 2779 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 54,940 psi | 88% | 2759 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,767 psi | 89% | 2818 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,071 psi | 88% | 2828 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,941 psi | 90% | 2799 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,679 psi | 88% | 2657 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,331 psi | 87% | 2736 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,984 psi | 88% | 2871 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 53,650 psi | 86% | 2766 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 53,098 psi | 85% | 2753 fps | 95.8% |
| Somchem S365 | <<locked>> | 94% | 53,824 psi | 86% | 2844 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,159 psi | 90% | 2851 fps | 99% |
| Vihtavuori N135 | <<locked>> | 82% | 54,012 psi | 87% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,143 psi | 87% | 2700 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,708 psi | 88% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,142 psi | 85% | 2785 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,663 psi | 83% | 2769 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 84% | 55,883 psi | 90% | 2743 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,898 psi | 90% | 2844 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,347 psi | 90% | 2900 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,171 psi | 85% | 2900 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,376 psi | 90% | 2802 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,723 psi | 88% | 2861 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,426 psi | 73% | 2877 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,217 psi | 90% | 2805 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,144 psi | 90% | 2844 fps | 98.2% |
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 2495 | <<locked>> | 80% | 51,517 psi | 83% | 2651 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,197 psi | 79% | 2657 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 33,402 psi | 54% | 2425 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 48,791 psi | 78% | 2657 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,101 psi | 59% | 2526 fps | 98.1% |
| Accurate High Country | 69.7 gr | 94% | 47,703 psi | 76% | 2825 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 98% | 51,967 psi | 83% | 2881 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 45,890 psi | 74% | 2628 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,888 psi | 70% | 2674 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 96% | 47,630 psi | 76% | 2769 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,691 psi | 81% | 2841 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,918 psi | 70% | 2671 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,499 psi | 75% | 2657 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,617 psi | 80% | 2723 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,143 psi | 58% | 2533 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,002 psi | 66% | 2657 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,410 psi | 70% | 2664 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,685 psi | 70% | 2713 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,600 psi | 43% | 2293 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,113 psi | 55% | 2520 fps | 95.9% |
| Alliant Reloder-26 | 62.6 gr | 82% | 30,269 psi | 49% | 2454 fps | 95% |
| Bofors RP15 | <<locked>> | 96% | 42,917 psi | 69% | 2697 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 46,717 psi | 75% | 2667 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,685 psi | 70% | 2713 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 41,292 psi | 66% | 2543 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 47,253 psi | 76% | 2680 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,059 psi | 63% | 2569 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 41,959 psi | 67% | 2589 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 96% | 51,155 psi | 82% | 2782 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,009 psi | 80% | 2759 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,808 psi | 54% | 2431 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,300 psi | 82% | 2766 fps | 100% |
| Hodgdon Superformance | <<locked>> | 80% | 38,000 psi | 61% | 2575 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,137 psi | 44% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,228 psi | 84% | 2733 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,269 psi | 77% | 2661 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,705 psi | 81% | 2694 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 39,276 psi | 63% | 2523 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,540 psi | 68% | 2569 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 35,636 psi | 57% | 2477 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 50,850 psi | 82% | 2749 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,690 psi | 80% | 2720 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 98% | 48,544 psi | 78% | 2802 fps | 95.5% |
| Lovex S060 | <<locked>> | 80% | 53,084 psi | 85% | 2703 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,689 psi | 78% | 2664 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,190 psi | 64% | 2523 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 38,392 psi | 62% | 2503 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 34,563 psi | 55% | 2454 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 52,982 psi | 85% | 2720 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,979 psi | 79% | 2710 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,498 psi | 71% | 2664 fps | 95.6% |
| Norma MRP | <<locked>> | 88% | 37,449 psi | 60% | 2608 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 36,956 psi | 59% | 2520 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 49,226 psi | 79% | 2730 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,559 psi | 78% | 2812 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 35,868 psi | 58% | 2507 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 96% | 40,321 psi | 65% | 2628 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,688 psi | 44% | 1588 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,166 psi | 76% | 2661 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,555 psi | 70% | 2710 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,782 psi | 59% | 2539 fps | 97.7% |
| ReloadSwiss RS 70 | 60.5 gr | 80% | 35,781 psi | 57% | 2543 fps | 97% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,900 psi | 64% | 2697 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 50,502 psi | 81% | 2674 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,077 psi | 71% | 2615 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,414 psi | 78% | 2707 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 90% | 42,395 psi | 68% | 2644 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 41,292 psi | 66% | 2543 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,190 psi | 64% | 2523 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 48,689 psi | 78% | 2664 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,392 psi | 62% | 2503 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,223 psi | 73% | 2667 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,634 psi | 84% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,339 psi | 73% | 2523 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,247 psi | 63% | 2467 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,003 psi | 67% | 2641 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 44,440 psi | 71% | 2615 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,748 psi | 80% | 2700 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 33,402 psi | 54% | 2477 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 40,466 psi | 65% | 2579 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 50,589 psi | 81% | 2638 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,836 psi | 82% | 2651 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,366 psi | 68% | 2546 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,319 psi | 61% | 2520 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,668 psi | 64% | 2552 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 49,211 psi | 79% | 2648 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,884 psi | 61% | 2523 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 29,167 psi | 47% | 2365 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 96% | 49,632 psi | 80% | 2838 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,405 psi | 60% | 2490 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 39,247 psi | 63% | 2572 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,976 psi | 40% | 2313 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,591 psi | 84% | 2753 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,540 psi | 68% | 2615 fps | 95.2% |
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 94 powders for .300 H&H Mag. loaded with the .308 | 181gr | Brenneke TUG. Alliant Reloder-26 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,736 fps to 2,959 fps. Accurate 3100 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 181.0 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 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, Alliant Reloder-26, Accurate High Country rank at the top here: for .300 H&H Mag. with the .308 | 181gr | Brenneke TUG they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.