Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 184gr | RWS Evolution bullet and 95 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% | 53,925 psi | 86% | 2654 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,100 psi | 88% | 2720 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,344 psi | 84% | 2756 fps | 99.4% |
| Accurate 4064 | <<locked>> | 84% | 54,172 psi | 87% | 2707 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 54,737 psi | 88% | 2808 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 54,331 psi | 87% | 2736 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 55,811 psi | 89% | 2851 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2841 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 53,388 psi | 86% | 2851 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 55,622 psi | 89% | 2844 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,100 psi | 88% | 2759 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,361 psi | 89% | 2779 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,448 psi | 89% | 2861 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 52,982 psi | 85% | 2835 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 54,868 psi | 88% | 2835 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,170 psi | 84% | 2838 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,110 psi | 79% | 2776 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,786 psi | 69% | 2697 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 52,489 psi | 84% | 2907 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,863 psi | 77% | 2762 fps | 96.8% |
| Bofors RP3 | <<locked>> | 86% | 55,898 psi | 90% | 2776 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,170 psi | 84% | 2838 fps | 97.8% |
| Bofors RP7 | <<locked>> | 90% | 55,376 psi | 89% | 2759 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 52,924 psi | 85% | 2740 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 53,258 psi | 85% | 2802 fps | 99% |
| Hodgdon H4350 | <<locked>> | 88% | 53,287 psi | 85% | 2762 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 98% | 53,461 psi | 86% | 2785 fps | 95.8% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,115 psi | 90% | 2828 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,753 psi | 89% | 2789 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,838 psi | 86% | 2772 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 53,359 psi | 86% | 2838 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,390 psi | 58% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,737 psi | 88% | 2736 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 53,896 psi | 86% | 2720 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,142 psi | 85% | 2700 fps | 98.9% |
| IMR 4350 | <<locked>> | 94% | 56,144 psi | 90% | 2789 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,563 psi | 86% | 2733 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 55,245 psi | 89% | 2802 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,243 psi | 85% | 2756 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,332 psi | 89% | 2779 fps | 96.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,778 psi | 81% | 2808 fps | 96% |
| Lovex S060 | <<locked>> | 82% | 55,550 psi | 89% | 2707 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,012 psi | 87% | 2713 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,679 psi | 86% | 2733 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 54,795 psi | 88% | 2772 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,598 psi | 70% | 2612 fps | 98.2% |
| Norma 201 | <<locked>> | 82% | 55,448 psi | 89% | 2723 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,086 psi | 90% | 2720 fps | 100% |
| Norma 203B | <<locked>> | 84% | 54,650 psi | 88% | 2766 fps | 100% |
| Norma 204 | <<locked>> | 92% | 53,374 psi | 86% | 2789 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 55,259 psi | 89% | 2920 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 53,432 psi | 86% | 2792 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,434 psi | 89% | 2795 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 50,952 psi | 82% | 2822 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 94% | 55,811 psi | 89% | 2848 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,353 psi | 73% | 2700 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,941 psi | 59% | 1749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,391 psi | 90% | 2779 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,289 psi | 90% | 2877 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 54,418 psi | 87% | 2828 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 52,953 psi | 85% | 2854 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,669 psi | 67% | 2710 fps | 96.7% |
| Rottweil R 902 | <<locked>> | 84% | 55,999 psi | 90% | 2723 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,028 psi | 90% | 2772 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 53,911 psi | 86% | 2766 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 98% | 54,099 psi | 87% | 2822 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 55,376 psi | 89% | 2759 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,679 psi | 86% | 2733 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 54,012 psi | 87% | 2713 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,795 psi | 88% | 2772 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 53,940 psi | 86% | 2779 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,245 psi | 89% | 2753 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,391 psi | 90% | 2657 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,838 psi | 86% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 53,374 psi | 86% | 2687 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 53,621 psi | 86% | 2815 fps | 98% |
| Somchem S335 | <<locked>> | 82% | 55,927 psi | 90% | 2654 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,869 psi | 90% | 2766 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 55,796 psi | 89% | 2762 fps | 96.3% |
| Somchem S365 | <<locked>> | 96% | 56,217 psi | 90% | 2844 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 54,926 psi | 88% | 2802 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 53,142 psi | 85% | 2641 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,243 psi | 85% | 2654 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 53,824 psi | 86% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,593 psi | 89% | 2789 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,546 psi | 81% | 2720 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 84% | 54,911 psi | 88% | 2697 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,795 psi | 88% | 2795 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,172 psi | 88% | 2851 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,680 psi | 89% | 2910 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,172 psi | 88% | 2756 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,519 psi | 86% | 2808 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,251 psi | 71% | 2825 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,274 psi | 89% | 2759 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,027 psi | 88% | 2795 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% | 50,415 psi | 81% | 2605 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,298 psi | 77% | 2608 fps | 97.5% |
| Accurate 3100 | <<locked>> | 88% | 34,780 psi | 56% | 2431 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 47,790 psi | 77% | 2612 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,230 psi | 58% | 2477 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 45,208 psi | 72% | 2585 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 42,989 psi | 69% | 2625 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 98% | 49,995 psi | 80% | 2779 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,705 psi | 80% | 2792 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,004 psi | 69% | 2625 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,585 psi | 73% | 2612 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,675 psi | 78% | 2674 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,549 psi | 57% | 2490 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,045 psi | 64% | 2608 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,511 psi | 68% | 2615 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,714 psi | 68% | 2664 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,976 psi | 42% | 2247 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,417 psi | 54% | 2474 fps | 95.5% |
| Alliant Reloder-26 | 62.1 gr | 84% | 31,647 psi | 51% | 2470 fps | 95.7% |
| Bofors RP15 | <<locked>> | 96% | 41,901 psi | 67% | 2648 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 45,832 psi | 73% | 2621 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 42,714 psi | 68% | 2664 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 40,495 psi | 65% | 2493 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 46,224 psi | 74% | 2631 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 80% | 38,305 psi | 61% | 2523 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 80% | 41,176 psi | 66% | 2543 fps | 95.2% |
| Hodgdon H4831 | <<locked>> | 96% | 49,995 psi | 80% | 2726 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,460 psi | 84% | 2769 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,982 psi | 53% | 2385 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,459 psi | 81% | 2723 fps | 100% |
| Hodgdon Superformance | 62.6 gr | 82% | 40,016 psi | 64% | 2592 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,064 psi | 43% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,561 psi | 83% | 2690 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,529 psi | 76% | 2618 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,908 psi | 80% | 2648 fps | 98.5% |
| IMR 4350 | <<locked>> | 82% | 38,595 psi | 62% | 2477 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,959 psi | 67% | 2526 fps | 96.7% |
| IMR 4831 | <<locked>> | 80% | 34,998 psi | 56% | 2434 fps | 97.6% |
| IMR 4895 | <<locked>> | 80% | 49,937 psi | 80% | 2703 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,895 psi | 83% | 2723 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 98% | 47,471 psi | 76% | 2749 fps | 95.1% |
| Lovex S060 | <<locked>> | 80% | 52,156 psi | 84% | 2654 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,703 psi | 76% | 2615 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,378 psi | 63% | 2477 fps | 97.4% |
| Lovex S070 | <<locked>> | 80% | 37,637 psi | 60% | 2457 fps | 95.7% |
| Lovex S071 | <<locked>> | 92% | 33,765 psi | 54% | 2408 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 51,996 psi | 83% | 2674 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,591 psi | 84% | 2671 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,037 psi | 77% | 2664 fps | 100% |
| Norma 204 | <<locked>> | 86% | 43,526 psi | 70% | 2615 fps | 95.3% |
| Norma MRP | <<locked>> | 90% | 39,146 psi | 63% | 2621 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 36,100 psi | 58% | 2474 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 80% | 48,254 psi | 77% | 2684 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 47,529 psi | 76% | 2759 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 35,012 psi | 56% | 2461 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 98% | 42,279 psi | 68% | 2638 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,644 psi | 44% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,441 psi | 74% | 2618 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,583 psi | 68% | 2664 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,027 psi | 58% | 2497 fps | 97.5% |
| ReloadSwiss RS 70 | 58.6 gr | 80% | 35,041 psi | 56% | 2497 fps | 96.7% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,001 psi | 63% | 2644 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 49,690 psi | 80% | 2631 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,134 psi | 69% | 2569 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 47,514 psi | 76% | 2657 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 90% | 41,626 psi | 67% | 2602 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 40,495 psi | 65% | 2493 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,378 psi | 63% | 2477 fps | 97.4% |
| Shooters World Precision | <<locked>> | 80% | 47,703 psi | 76% | 2615 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,637 psi | 60% | 2457 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,222 psi | 71% | 2618 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,619 psi | 83% | 2700 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,026 psi | 85% | 2612 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,788 psi | 72% | 2487 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,667 psi | 62% | 2425 fps | 95.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,234 psi | 66% | 2595 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 52,533 psi | 84% | 2608 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,526 psi | 70% | 2569 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 52,112 psi | 84% | 2707 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 32,590 psi | 52% | 2431 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 39,566 psi | 63% | 2530 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 49,922 psi | 80% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,908 psi | 80% | 2608 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,524 psi | 67% | 2500 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,507 psi | 60% | 2474 fps | 98% |
| Vihtavuori N165 | <<locked>> | 94% | 41,524 psi | 67% | 2559 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 48,196 psi | 77% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,956 psi | 59% | 2474 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 80% | 28,500 psi | 46% | 2326 fps | 95.6% |
| Vihtavuori N560 | <<locked>> | 96% | 48,559 psi | 78% | 2785 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,709 psi | 59% | 2448 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 38,305 psi | 61% | 2523 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,121 psi | 42% | 2333 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,605 psi | 83% | 2707 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 44,715 psi | 72% | 2628 fps | 95.8% |
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 95 powders for .300 H&H Mag. loaded with the .308 | 184gr | RWS Evolution. Norma MRP delivers the highest muzzle velocity at 2,920 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,920 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 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 184.0 gr projectile in 0.308" calls for a 1:13.0 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 | 184gr | RWS Evolution 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.