Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 180gr | Norma VULKAN bullet and 92 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 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 2495 | <<locked>> | 82% | 54,926 psi | 88% | 2707 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,057 psi | 90% | 2772 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,911 psi | 86% | 2815 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 55,303 psi | 89% | 2759 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,970 psi | 90% | 2864 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 55,999 psi | 90% | 2956 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 55,506 psi | 89% | 2792 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,316 psi | 85% | 2851 fps | 97.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,534 psi | 87% | 2897 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,534 psi | 87% | 2910 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,461 psi | 86% | 2848 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,304 psi | 90% | 2815 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,391 psi | 90% | 2835 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 53,171 psi | 85% | 2867 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,418 psi | 87% | 2890 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,173 psi | 90% | 2894 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,388 psi | 86% | 2897 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,473 psi | 81% | 2831 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,048 psi | 71% | 2756 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,099 psi | 87% | 2969 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,037 psi | 79% | 2818 fps | 97% |
| Bofors RP3 | <<locked>> | 84% | 53,548 psi | 86% | 2782 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,388 psi | 86% | 2897 fps | 98% |
| Bofors RP7 | <<locked>> | 90% | 56,333 psi | 90% | 2815 fps | 99% |
| Hodgdon H380 | <<locked>> | 84% | 53,809 psi | 86% | 2795 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,621 psi | 88% | 2861 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 88% | 54,505 psi | 87% | 2822 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 98% | 54,650 psi | 88% | 2844 fps | 96.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,635 psi | 86% | 2828 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,563 psi | 86% | 2795 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,071 psi | 88% | 2828 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,636 psi | 88% | 2897 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,477 psi | 58% | 1745 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,796 psi | 89% | 2795 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,955 psi | 88% | 2776 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,056 psi | 87% | 2756 fps | 99% |
| IMR 4350 | <<locked>> | 92% | 53,925 psi | 86% | 2799 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,520 psi | 87% | 2789 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 56,347 psi | 90% | 2854 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,360 psi | 87% | 2812 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,260 psi | 90% | 2835 fps | 96.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,098 psi | 84% | 2871 fps | 96.3% |
| Lovex S060 | <<locked>> | 82% | 56,376 psi | 90% | 2759 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,129 psi | 88% | 2769 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,665 psi | 88% | 2789 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 55,869 psi | 90% | 2828 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,759 psi | 72% | 2667 fps | 98.4% |
| Norma 201 | <<locked>> | 82% | 56,347 psi | 90% | 2779 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,666 psi | 89% | 2822 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,534 psi | 87% | 2848 fps | 97.8% |
| Norma MRP | <<locked>> | 98% | 53,084 psi | 85% | 2923 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 54,650 psi | 88% | 2848 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 52,794 psi | 85% | 2792 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,185 psi | 84% | 2884 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 92% | 53,519 psi | 86% | 2851 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,630 psi | 75% | 2762 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,999 psi | 59% | 1785 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,708 psi | 86% | 2776 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,925 psi | 86% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,912 psi | 90% | 2890 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,273 psi | 87% | 2913 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,946 psi | 69% | 2772 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 82% | 53,708 psi | 86% | 2730 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,650 psi | 86% | 2776 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,042 psi | 88% | 2825 fps | 97% |
| Rottweil R 905 | <<locked>> | 98% | 55,492 psi | 89% | 2881 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 90% | 56,333 psi | 90% | 2815 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,665 psi | 88% | 2789 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 55,129 psi | 88% | 2769 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,869 psi | 90% | 2828 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,216 psi | 89% | 2835 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,130 psi | 90% | 2805 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,665 psi | 88% | 2664 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,476 psi | 87% | 2743 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,013 psi | 88% | 2877 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 53,592 psi | 86% | 2772 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 53,954 psi | 87% | 2851 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,202 psi | 90% | 2861 fps | 99% |
| Vihtavuori N135 | <<locked>> | 82% | 54,012 psi | 87% | 2690 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,317 psi | 87% | 2707 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,882 psi | 88% | 2749 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,272 psi | 85% | 2792 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,938 psi | 83% | 2779 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 84% | 55,753 psi | 89% | 2749 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,043 psi | 90% | 2851 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 53,127 psi | 85% | 2861 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,447 psi | 86% | 2913 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,420 psi | 90% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,810 psi | 88% | 2864 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,643 psi | 73% | 2890 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,391 psi | 90% | 2815 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,420 psi | 90% | 2854 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% | 2657 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,371 psi | 79% | 2667 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 33,504 psi | 54% | 2434 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 48,805 psi | 78% | 2664 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,275 psi | 60% | 2533 fps | 98.1% |
| Accurate MAGPRO | <<locked>> | 98% | 51,953 psi | 83% | 2890 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 46,108 psi | 74% | 2641 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 44,005 psi | 71% | 2680 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 96% | 47,688 psi | 76% | 2776 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,894 psi | 82% | 2851 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,005 psi | 71% | 2677 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,499 psi | 75% | 2664 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,777 psi | 80% | 2733 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,347 psi | 58% | 2543 fps | 98.2% |
| Alliant Reloder-17 | 60 gr | 80% | 41,133 psi | 66% | 2664 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,511 psi | 70% | 2674 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,743 psi | 70% | 2720 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,585 psi | 43% | 2297 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,185 psi | 55% | 2526 fps | 95.9% |
| Alliant Reloder-26 | 64.5 gr | 84% | 32,503 psi | 52% | 2526 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 43,134 psi | 69% | 2707 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 46,920 psi | 75% | 2677 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,743 psi | 70% | 2720 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 41,263 psi | 66% | 2546 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 47,239 psi | 76% | 2684 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 39,233 psi | 63% | 2579 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 42,134 psi | 68% | 2598 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 96% | 51,198 psi | 82% | 2789 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,038 psi | 80% | 2769 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,837 psi | 54% | 2438 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,459 psi | 83% | 2776 fps | 100% |
| Hodgdon Superformance | <<locked>> | 80% | 38,116 psi | 61% | 2585 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 44% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,431 psi | 84% | 2743 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,457 psi | 78% | 2674 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,633 psi | 81% | 2700 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 39,421 psi | 63% | 2530 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,685 psi | 68% | 2579 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 35,795 psi | 57% | 2487 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 51,082 psi | 82% | 2759 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,763 psi | 80% | 2726 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 98% | 48,588 psi | 78% | 2808 fps | 95.4% |
| Lovex S060 | <<locked>> | 80% | 53,055 psi | 85% | 2710 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,689 psi | 78% | 2671 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,176 psi | 64% | 2530 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 38,406 psi | 62% | 2510 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 34,650 psi | 56% | 2461 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 52,968 psi | 85% | 2730 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,153 psi | 79% | 2720 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,628 psi | 72% | 2674 fps | 95.6% |
| Norma MRP | <<locked>> | 88% | 37,536 psi | 60% | 2615 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 36,927 psi | 59% | 2523 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 49,385 psi | 79% | 2740 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,776 psi | 78% | 2822 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 35,795 psi | 57% | 2510 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 96% | 40,350 psi | 65% | 2635 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,659 psi | 44% | 1594 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,297 psi | 76% | 2671 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,714 psi | 70% | 2720 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,912 psi | 59% | 2549 fps | 97.7% |
| ReloadSwiss RS 70 | 60.9 gr | 80% | 35,911 psi | 58% | 2552 fps | 97% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 40,059 psi | 64% | 2707 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 50,488 psi | 81% | 2684 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,063 psi | 71% | 2621 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,515 psi | 78% | 2713 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 42,525 psi | 68% | 2654 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 41,263 psi | 66% | 2546 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,176 psi | 64% | 2530 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 48,689 psi | 78% | 2671 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,406 psi | 62% | 2510 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,194 psi | 72% | 2674 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,576 psi | 84% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,542 psi | 73% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,378 psi | 63% | 2477 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,134 psi | 68% | 2648 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 44,440 psi | 71% | 2621 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 33,547 psi | 54% | 2487 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 40,582 psi | 65% | 2585 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 50,836 psi | 82% | 2648 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,821 psi | 81% | 2657 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,366 psi | 68% | 2552 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,464 psi | 62% | 2530 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,740 psi | 64% | 2559 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 49,168 psi | 79% | 2654 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,855 psi | 61% | 2526 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 29,196 psi | 47% | 2372 fps | 95.8% |
| Vihtavuori N560 | <<locked>> | 96% | 49,922 psi | 80% | 2851 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,492 psi | 60% | 2497 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 39,233 psi | 63% | 2579 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,048 psi | 40% | 2320 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,779 psi | 85% | 2762 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,598 psi | 68% | 2621 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 92 powders for .300 H&H Mag. loaded with the .308 | 180gr | Norma VULKAN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,745 fps to 2,969 fps. Accurate 3100 gives the best case fill at 100 %, and 92 of the 92 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 1:15.0 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, Alliant Reloder-17 rank at the top here: for .300 H&H Mag. with the .308 | 180gr | Norma VULKAN 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.