Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 180gr | Prvi Partizan SP 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 Hodgdon Superformance.
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% | 54,215 psi | 87% | 2690 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,332 psi | 89% | 2756 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,721 psi | 85% | 2795 fps | 99.4% |
| Accurate 4064 | <<locked>> | 84% | 54,650 psi | 88% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,158 psi | 88% | 2851 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 54,723 psi | 88% | 2776 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 56,260 psi | 90% | 2894 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,722 psi | 86% | 2881 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 53,664 psi | 86% | 2890 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,492 psi | 89% | 2802 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,753 psi | 89% | 2822 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,869 psi | 90% | 2904 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 53,374 psi | 86% | 2874 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,288 psi | 89% | 2877 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,489 psi | 84% | 2877 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,559 psi | 79% | 2815 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,294 psi | 69% | 2740 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 52,953 psi | 85% | 2946 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,211 psi | 77% | 2802 fps | 96.7% |
| Bofors RP3 | <<locked>> | 86% | 56,217 psi | 90% | 2815 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,489 psi | 84% | 2877 fps | 97.8% |
| Bofors RP7 | <<locked>> | 90% | 55,608 psi | 89% | 2799 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 53,258 psi | 85% | 2782 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 53,621 psi | 86% | 2841 fps | 99% |
| Hodgdon H4350 | <<locked>> | 88% | 53,751 psi | 86% | 2805 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 98% | 53,853 psi | 86% | 2825 fps | 95.8% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,420 psi | 90% | 2867 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,115 psi | 90% | 2828 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,201 psi | 87% | 2815 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 53,708 psi | 86% | 2881 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,289 psi | 58% | 1736 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,172 psi | 88% | 2779 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,128 psi | 87% | 2759 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,301 psi | 85% | 2740 fps | 98.9% |
| IMR 4350 | <<locked>> | 94% | 56,420 psi | 90% | 2828 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,838 psi | 86% | 2772 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 55,593 psi | 89% | 2841 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,751 psi | 86% | 2799 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,709 psi | 89% | 2818 fps | 96.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,053 psi | 82% | 2848 fps | 96% |
| Lovex S060 | <<locked>> | 82% | 55,811 psi | 89% | 2746 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,520 psi | 87% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,940 psi | 86% | 2772 fps | 99.6% |
| Lovex S070 | <<locked>> | 92% | 55,172 psi | 88% | 2812 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,859 psi | 70% | 2648 fps | 98.1% |
| Norma 201 | <<locked>> | 82% | 55,695 psi | 89% | 2762 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,333 psi | 90% | 2759 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,042 psi | 88% | 2808 fps | 100% |
| Norma 204 | <<locked>> | 92% | 53,650 psi | 86% | 2828 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 55,767 psi | 89% | 2963 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 53,882 psi | 86% | 2835 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,622 psi | 89% | 2831 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,445 psi | 82% | 2864 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 94% | 56,260 psi | 90% | 2887 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,687 psi | 73% | 2740 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,057 psi | 59% | 1778 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 52,968 psi | 85% | 2762 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 52,837 psi | 85% | 2867 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 54,897 psi | 88% | 2871 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 53,374 psi | 86% | 2897 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,163 psi | 68% | 2753 fps | 96.8% |
| Rottweil R 902 | <<locked>> | 84% | 56,289 psi | 90% | 2762 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,318 psi | 90% | 2812 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,418 psi | 87% | 2808 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 98% | 54,549 psi | 87% | 2864 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 55,608 psi | 89% | 2799 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,940 psi | 86% | 2772 fps | 99.6% |
| Shooters World Precision | <<locked>> | 84% | 54,520 psi | 87% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,172 psi | 88% | 2812 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,201 psi | 87% | 2818 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,303 psi | 89% | 2792 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,434 psi | 90% | 2694 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,056 psi | 87% | 2654 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 53,534 psi | 86% | 2723 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,070 psi | 87% | 2858 fps | 98% |
| Somchem S335 | <<locked>> | 82% | 56,202 psi | 90% | 2694 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,202 psi | 90% | 2805 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 55,999 psi | 90% | 2799 fps | 96.2% |
| Somchem S365 | <<locked>> | 94% | 52,881 psi | 85% | 2835 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,303 psi | 89% | 2841 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 53,287 psi | 85% | 2677 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,461 psi | 86% | 2694 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,085 psi | 87% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,985 psi | 90% | 2828 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,894 psi | 82% | 2759 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 84% | 55,216 psi | 89% | 2740 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,056 psi | 88% | 2835 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,651 psi | 89% | 2894 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 56,159 psi | 90% | 2949 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,550 psi | 89% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,867 psi | 86% | 2848 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,686 psi | 72% | 2867 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,564 psi | 89% | 2802 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,317 psi | 89% | 2831 fps | 98% |
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% | 50,792 psi | 81% | 2648 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,631 psi | 78% | 2648 fps | 97.5% |
| Accurate 3100 | <<locked>> | 88% | 35,157 psi | 56% | 2467 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 48,109 psi | 77% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,477 psi | 58% | 2513 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 45,527 psi | 73% | 2625 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 43,178 psi | 69% | 2661 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 98% | 50,314 psi | 81% | 2818 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,009 psi | 80% | 2831 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,876 psi | 74% | 2648 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,936 psi | 78% | 2713 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,810 psi | 57% | 2526 fps | 97.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,408 psi | 65% | 2648 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,859 psi | 69% | 2654 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,960 psi | 69% | 2700 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,165 psi | 42% | 2280 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,547 psi | 54% | 2503 fps | 95.4% |
| Alliant Reloder-26 | 63.6 gr | 84% | 31,952 psi | 51% | 2507 fps | 95.7% |
| Bofors RP15 | <<locked>> | 96% | 42,366 psi | 68% | 2687 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 46,296 psi | 74% | 2661 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 42,960 psi | 69% | 2700 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 40,727 psi | 65% | 2533 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 46,644 psi | 75% | 2671 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 80% | 38,522 psi | 62% | 2559 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 80% | 41,582 psi | 67% | 2585 fps | 95.2% |
| Hodgdon H4831 | <<locked>> | 96% | 50,401 psi | 81% | 2769 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,837 psi | 85% | 2812 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,272 psi | 53% | 2421 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,865 psi | 82% | 2762 fps | 100% |
| Hodgdon Superformance | 64 gr | 82% | 40,176 psi | 64% | 2628 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,195 psi | 44% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,837 psi | 83% | 2730 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,834 psi | 77% | 2657 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,111 psi | 80% | 2687 fps | 98.4% |
| IMR 4350 | <<locked>> | 82% | 38,769 psi | 62% | 2513 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,177 psi | 68% | 2562 fps | 96.6% |
| IMR 4831 | <<locked>> | 80% | 35,230 psi | 56% | 2470 fps | 97.5% |
| IMR 4895 | <<locked>> | 80% | 50,198 psi | 80% | 2743 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,330 psi | 84% | 2766 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 98% | 47,819 psi | 77% | 2789 fps | 95% |
| Lovex S060 | <<locked>> | 80% | 52,446 psi | 84% | 2697 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,051 psi | 77% | 2657 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,653 psi | 64% | 2513 fps | 97.4% |
| Lovex S070 | <<locked>> | 80% | 37,840 psi | 61% | 2493 fps | 95.7% |
| Lovex S071 | <<locked>> | 92% | 34,040 psi | 55% | 2441 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 52,315 psi | 84% | 2713 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,924 psi | 85% | 2713 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,298 psi | 77% | 2703 fps | 100% |
| Norma 204 | <<locked>> | 86% | 43,743 psi | 70% | 2651 fps | 95.2% |
| Norma MRP | <<locked>> | 90% | 39,436 psi | 63% | 2657 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 36,361 psi | 58% | 2510 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 80% | 48,602 psi | 78% | 2723 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 47,805 psi | 77% | 2799 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 35,331 psi | 57% | 2497 fps | 95.5% |
| Ramshot Magnum | <<locked>> | 98% | 42,699 psi | 68% | 2677 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 44% | 1591 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,586 psi | 75% | 2654 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,917 psi | 69% | 2703 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,187 psi | 58% | 2530 fps | 97.4% |
| ReloadSwiss RS 70 | 60 gr | 80% | 35,302 psi | 57% | 2533 fps | 96.6% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,334 psi | 63% | 2684 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 49,821 psi | 80% | 2667 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,439 psi | 70% | 2605 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 47,834 psi | 77% | 2697 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 90% | 41,843 psi | 67% | 2638 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 40,727 psi | 65% | 2533 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,653 psi | 64% | 2513 fps | 97.4% |
| Shooters World Precision | <<locked>> | 80% | 48,051 psi | 77% | 2657 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,840 psi | 61% | 2493 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,585 psi | 71% | 2661 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,996 psi | 83% | 2743 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,200 psi | 85% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,933 psi | 72% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,914 psi | 62% | 2461 fps | 95.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,452 psi | 66% | 2631 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 52,852 psi | 85% | 2648 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,830 psi | 70% | 2605 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 52,388 psi | 84% | 2743 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 32,837 psi | 53% | 2467 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 39,958 psi | 64% | 2569 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 50,125 psi | 80% | 2635 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,198 psi | 80% | 2644 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,785 psi | 67% | 2539 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,739 psi | 61% | 2510 fps | 98% |
| Vihtavuori N165 | <<locked>> | 94% | 41,771 psi | 67% | 2598 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 48,602 psi | 78% | 2641 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,318 psi | 60% | 2513 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 80% | 28,645 psi | 46% | 2356 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 96% | 49,095 psi | 79% | 2828 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,941 psi | 59% | 2484 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 38,682 psi | 62% | 2562 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,324 psi | 42% | 2365 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,938 psi | 83% | 2746 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 44,933 psi | 72% | 2661 fps | 95.7% |
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 94 powders for .300 H&H Mag. loaded with the .308 | 180gr | Prvi Partizan SP. Norma MRP delivers the highest muzzle velocity at 2,963 fps; across all powders the maximum-charge window runs from 1,736 fps to 2,963 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 180.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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, Hodgdon Superformance rank at the top here: for .300 H&H Mag. with the .308 | 180gr | Prvi Partizan SP 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.