Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 200gr | Norma VULKAN bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and Alliant Reloder-26.
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 2700 | <<locked>> | 82% | 55,158 psi | 88% | 2625 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 53,795 psi | 86% | 2677 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 54,984 psi | 88% | 2605 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,825 psi | 90% | 2717 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 54,955 psi | 88% | 2815 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 98% | 55,898 psi | 90% | 2815 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 84% | 54,650 psi | 88% | 2635 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,881 psi | 85% | 2707 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 98% | 54,128 psi | 87% | 2759 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,246 psi | 60% | 2493 fps | 96.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 53,185 psi | 85% | 2707 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,680 psi | 89% | 2657 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,695 psi | 89% | 2677 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,069 psi | 85% | 2717 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,925 psi | 86% | 2733 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,028 psi | 90% | 2753 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 98% | 53,388 psi | 86% | 2756 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,012 psi | 87% | 2736 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,934 psi | 75% | 2680 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,186 psi | 87% | 2822 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,359 psi | 84% | 2740 fps | 98.6% |
| Bofors RP3 | <<locked>> | 82% | 53,098 psi | 85% | 2628 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 42,844 psi | 69% | 2608 fps | 95.9% |
| Bofors RP5 | <<locked>> | 98% | 53,388 psi | 86% | 2756 fps | 98.8% |
| Bofors RP7 | <<locked>> | 88% | 55,767 psi | 89% | 2667 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,354 psi | 74% | 2621 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 82% | 53,272 psi | 85% | 2644 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,186 psi | 87% | 2713 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 53,925 psi | 86% | 2677 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 96% | 54,230 psi | 87% | 2703 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,171 psi | 85% | 2690 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,345 psi | 86% | 2648 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,832 psi | 73% | 2720 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 88% | 54,259 psi | 87% | 2749 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,593 psi | 59% | 1647 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,244 psi | 87% | 2621 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,476 psi | 86% | 2654 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,896 psi | 86% | 2641 fps | 99.5% |
| IMR 4831 | <<locked>> | 92% | 56,188 psi | 90% | 2707 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,811 psi | 89% | 2694 fps | 97.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,405 psi | 89% | 2792 fps | 98.1% |
| Lovex S062 | <<locked>> | 82% | 54,505 psi | 87% | 2612 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,201 psi | 87% | 2641 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 55,434 psi | 89% | 2680 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,906 psi | 77% | 2589 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 54,984 psi | 88% | 2664 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,853 psi | 86% | 2697 fps | 98.6% |
| Norma MRP | <<locked>> | 96% | 53,040 psi | 85% | 2782 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 54,360 psi | 87% | 2700 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,985 psi | 90% | 2694 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,999 psi | 90% | 2812 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 53,026 psi | 85% | 2700 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,879 psi | 80% | 2687 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,434 psi | 60% | 1690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,997 psi | 85% | 2628 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,548 psi | 86% | 2726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,651 psi | 89% | 2740 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,969 psi | 87% | 2766 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,745 psi | 73% | 2713 fps | 99% |
| Rottweil R 902 | <<locked>> | 82% | 56,376 psi | 90% | 2621 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 53,229 psi | 85% | 2625 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,723 psi | 88% | 2684 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 96% | 55,361 psi | 89% | 2740 fps | 99% |
| Rottweil R 907 | <<locked>> | 88% | 55,767 psi | 89% | 2667 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,201 psi | 87% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,505 psi | 87% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,434 psi | 89% | 2680 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,476 psi | 87% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,780 psi | 86% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,490 psi | 86% | 2595 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,897 psi | 88% | 2736 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 53,229 psi | 85% | 2621 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,130 psi | 90% | 2674 fps | 97.4% |
| Somchem S365 | <<locked>> | 92% | 53,867 psi | 86% | 2700 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,840 psi | 90% | 2717 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 54,346 psi | 87% | 2595 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,895 psi | 85% | 2644 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,274 psi | 89% | 2694 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 82% | 55,129 psi | 88% | 2595 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,637 psi | 89% | 2703 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,229 psi | 85% | 2713 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,243 psi | 85% | 2772 fps | 97.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,675 psi | 78% | 2687 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,985 psi | 90% | 2661 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,389 psi | 87% | 2720 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,647 psi | 80% | 2805 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,869 psi | 90% | 2710 fps | 98.9% |
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 2700 | <<locked>> | 80% | 51,808 psi | 83% | 2572 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 31,314 psi | 50% | 2260 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 51,561 psi | 83% | 2559 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,697 psi | 64% | 2454 fps | 99.3% |
| Accurate High Country | <<locked>> | 88% | 41,655 psi | 67% | 2579 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 94% | 48,472 psi | 78% | 2694 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 48,356 psi | 78% | 2539 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 40,872 psi | 66% | 2493 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 44,382 psi | 71% | 2589 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 98% | 34,998 psi | 56% | 2434 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 38,435 psi | 62% | 2438 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,037 psi | 79% | 2562 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,257 psi | 84% | 2628 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,493 psi | 62% | 2464 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,859 psi | 70% | 2579 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,043 psi | 61% | 2431 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,363 psi | 62% | 2484 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,297 psi | 45% | 2238 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,139 psi | 48% | 2303 fps | 95.3% |
| Alliant Reloder-26 | 59.8 gr | 80% | 30,269 psi | 49% | 2346 fps | 96.4% |
| Bofors RP15 | <<locked>> | 92% | 40,437 psi | 65% | 2526 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 49,516 psi | 79% | 2575 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,118 psi | 64% | 2552 fps | 95% |
| Bofors RP5 | <<locked>> | 88% | 38,363 psi | 62% | 2484 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 43,410 psi | 70% | 2464 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 98% | 43,381 psi | 70% | 2562 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 49,951 psi | 80% | 2592 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 41,597 psi | 67% | 2500 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 44,338 psi | 71% | 2513 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 47,456 psi | 76% | 2595 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,572 psi | 75% | 2579 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,042 psi | 58% | 2359 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,797 psi | 61% | 2539 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 40,495 psi | 65% | 2513 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 44% | 1470 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,894 psi | 82% | 2569 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,001 psi | 63% | 2398 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,860 psi | 72% | 2490 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 38,145 psi | 61% | 2411 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,427 psi | 74% | 2539 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 94% | 45,397 psi | 73% | 2621 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 51,140 psi | 82% | 2566 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,337 psi | 68% | 2444 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 40,553 psi | 65% | 2428 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 30,734 psi | 49% | 2247 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 51,619 psi | 83% | 2615 fps | 100% |
| Norma 204 | <<locked>> | 82% | 41,234 psi | 66% | 2480 fps | 95.8% |
| Norma MRP | 61 gr | 84% | 35,085 psi | 56% | 2434 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 39,305 psi | 63% | 2444 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 80% | 52,315 psi | 84% | 2641 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 42,076 psi | 67% | 2569 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 38,232 psi | 61% | 2438 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 37,333 psi | 60% | 2454 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 45% | 1509 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,792 psi | 80% | 2575 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,572 psi | 75% | 2625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,479 psi | 63% | 2474 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,159 psi | 61% | 2484 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,766 psi | 56% | 2461 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 52,924 psi | 85% | 2575 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,688 psi | 75% | 2526 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,453 psi | 68% | 2474 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 39,842 psi | 64% | 2470 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 43,410 psi | 70% | 2464 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,337 psi | 68% | 2444 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 51,140 psi | 82% | 2566 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,553 psi | 65% | 2428 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,993 psi | 77% | 2582 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,674 psi | 76% | 2428 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,524 psi | 67% | 2395 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,479 psi | 63% | 2467 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 46,847 psi | 75% | 2523 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,166 psi | 74% | 2516 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 35,868 psi | 58% | 2408 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,549 psi | 57% | 2352 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 44,730 psi | 72% | 2457 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,712 psi | 65% | 2444 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 37,231 psi | 60% | 2385 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 51,808 psi | 83% | 2549 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,292 psi | 65% | 2451 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 31,575 psi | 51% | 2313 fps | 97.9% |
| Vihtavuori N560 | 66.8 gr | 92% | 46,499 psi | 75% | 2657 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 98% | 45,542 psi | 73% | 2631 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,784 psi | 64% | 2415 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,814 psi | 67% | 2503 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,092 psi | 40% | 2224 fps | 97.2% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,624 psi | 64% | 2438 fps | 95.5% |
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 87 powders for .300 H&H Mag. loaded with the .308 | 200gr | Norma VULKAN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,822 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,822 fps. ADI AR 2225 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, Alliant Reloder-25 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for .300 H&H Mag. with the .308 | 200gr | 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.