Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 165gr | RWS Doppelkern bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 84% | 56,289 psi | 90% | 2848 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,143 psi | 87% | 2858 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,068 psi | 82% | 2887 fps | 98.8% |
| Accurate 4064 | <<locked>> | 84% | 53,142 psi | 85% | 2854 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 53,490 psi | 86% | 2949 fps | 99.8% |
| Accurate High Countryᴾ | <<locked>> | 100% | 55,854 psi | 90% | 3087 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 82% | 55,506 psi | 89% | 2927 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 53,330 psi | 86% | 2881 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 54,636 psi | 88% | 2986 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,927 psi | 90% | 3058 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 53,867 psi | 86% | 2904 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,186 psi | 87% | 2927 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,128 psi | 87% | 3005 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,405 psi | 89% | 3035 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 53,853 psi | 86% | 2972 fps | 97.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,778 psi | 81% | 2966 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,863 psi | 77% | 2907 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,858 psi | 67% | 2815 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,056 psi | 88% | 3104 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,506 psi | 89% | 2943 fps | 100% |
| Bofors RP3 | <<locked>> | 86% | 54,839 psi | 88% | 2923 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,778 psi | 81% | 2966 fps | 96.7% |
| Bofors RP7 | <<locked>> | 90% | 54,317 psi | 87% | 2900 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 86% | 55,129 psi | 88% | 2936 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 92% | 55,680 psi | 89% | 2999 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 90% | 55,651 psi | 89% | 2959 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 82% | 56,101 psi | 90% | 2936 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,462 psi | 87% | 2930 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 52,707 psi | 85% | 2920 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,057 psi | 90% | 3038 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,274 psi | 58% | 1827 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 53,650 psi | 86% | 2884 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,159 psi | 90% | 2913 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,477 psi | 89% | 2894 fps | 98.7% |
| IMR 4350 | <<locked>> | 94% | 55,172 psi | 88% | 2930 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,927 psi | 90% | 2930 fps | 98.7% |
| IMR 4831 | <<locked>> | 94% | 53,940 psi | 86% | 2940 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 55,622 psi | 89% | 2953 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 56,028 psi | 90% | 2904 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,476 psi | 87% | 2851 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 52,939 psi | 85% | 2858 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,883 psi | 90% | 2927 fps | 99.5% |
| Lovex S070 | <<locked>> | 92% | 53,621 psi | 86% | 2910 fps | 98.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,337 psi | 68% | 2730 fps | 97.1% |
| Norma 201 | <<locked>> | 82% | 54,230 psi | 87% | 2871 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,071 psi | 88% | 2871 fps | 100% |
| Norma 203B | <<locked>> | 84% | 53,476 psi | 86% | 2910 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,912 psi | 90% | 2982 fps | 97.3% |
| Norma MRPᴾ | <<locked>> | 100% | 53,998 psi | 87% | 3058 fps | 98.6% |
| Norma URP | <<locked>> | 94% | 55,796 psi | 89% | 2989 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 54,099 psi | 87% | 2936 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,650 psi | 88% | 2986 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,941 psi | 59% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,201 psi | 89% | 2920 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,027 psi | 88% | 2992 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,042 psi | 88% | 3031 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 53,214 psi | 85% | 2969 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,608 psi | 89% | 3054 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 84% | 54,998 psi | 88% | 2874 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,708 psi | 88% | 2917 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,217 psi | 90% | 2956 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 98% | 52,881 psi | 85% | 2956 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 90% | 54,317 psi | 87% | 2900 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,883 psi | 90% | 2927 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,028 psi | 90% | 2904 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 52,939 psi | 85% | 2858 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 53,621 psi | 86% | 2910 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,304 psi | 90% | 2976 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,056 psi | 87% | 2897 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,274 psi | 89% | 2805 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,970 psi | 90% | 2805 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,767 psi | 89% | 2877 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,144 psi | 90% | 3012 fps | 97.7% |
| Somchem S335 | <<locked>> | 82% | 54,839 psi | 88% | 2802 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 54,723 psi | 88% | 2910 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 54,752 psi | 88% | 2992 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 53,563 psi | 86% | 2933 fps | 98% |
| Vihtavuori N133 | <<locked>> | 82% | 55,753 psi | 89% | 2789 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,274 psi | 89% | 2835 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,463 psi | 89% | 2848 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,202 psi | 90% | 2887 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,520 psi | 87% | 2933 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,356 psi | 79% | 2848 fps | 96.8% |
| Vihtavuori N540 | <<locked>> | 84% | 53,693 psi | 86% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 53,490 psi | 86% | 2930 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,722 psi | 86% | 2989 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,157 psi | 87% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,927 psi | 90% | 3002 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,279 psi | 69% | 2956 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,114 psi | 87% | 2907 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,795 psi | 86% | 2927 fps | 97% |
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% | 49,356 psi | 79% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,369 psi | 76% | 2740 fps | 96.5% |
| Accurate 3100 | <<locked>> | 90% | 36,274 psi | 58% | 2598 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 46,746 psi | 75% | 2753 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,317 psi | 57% | 2595 fps | 96.7% |
| Accurate High Country | <<locked>> | 98% | 52,127 psi | 84% | 3022 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 52,243 psi | 84% | 2874 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,411 psi | 71% | 2723 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 47,979 psi | 77% | 2864 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,602 psi | 78% | 2930 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,628 psi | 72% | 2746 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,805 psi | 77% | 2818 fps | 99.7% |
| Alliant Reloder-16 | 57.1 gr | 80% | 34,780 psi | 56% | 2605 fps | 96.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,044 psi | 63% | 2733 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 47,239 psi | 76% | 2854 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,585 psi | 71% | 2844 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,819 psi | 46% | 2461 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 96% | 36,927 psi | 59% | 2694 fps | 95.9% |
| Alliant Reloder-26 | 67.7 gr | 86% | 33,112 psi | 53% | 2638 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,851 psi | 83% | 2887 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 44,831 psi | 72% | 2756 fps | 99.9% |
| Bofors RP5 | <<locked>> | 96% | 44,585 psi | 71% | 2844 fps | 95% |
| Bofors RP7 | <<locked>> | 82% | 42,192 psi | 68% | 2674 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 45,397 psi | 73% | 2766 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 82% | 39,929 psi | 64% | 2700 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 84% | 45,977 psi | 74% | 2785 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 52,823 psi | 85% | 2887 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,256 psi | 52% | 2500 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,342 psi | 79% | 2864 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 41,930 psi | 67% | 2772 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,963 psi | 43% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,473 psi | 81% | 2831 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,717 psi | 75% | 2759 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,008 psi | 79% | 2785 fps | 97.6% |
| IMR 4350 | <<locked>> | 86% | 42,815 psi | 69% | 2707 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,104 psi | 66% | 2651 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 34,055 psi | 55% | 2549 fps | 96.3% |
| IMR 4895 | <<locked>> | 80% | 48,994 psi | 79% | 2844 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 52,446 psi | 84% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,314 psi | 82% | 2802 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,818 psi | 75% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,624 psi | 62% | 2602 fps | 96.3% |
| Lovex S070 | <<locked>> | 82% | 39,276 psi | 63% | 2631 fps | 95.3% |
| Lovex S071 | <<locked>> | 96% | 37,304 psi | 60% | 2621 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 51,024 psi | 82% | 2818 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,576 psi | 83% | 2818 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,152 psi | 76% | 2802 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 48,849 psi | 78% | 2864 fps | 95.8% |
| Norma MRP | <<locked>> | 92% | 40,944 psi | 66% | 2799 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 35,186 psi | 56% | 2589 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 80% | 47,253 psi | 76% | 2822 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 36,564 psi | 59% | 2631 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,470 psi | 44% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,324 psi | 73% | 2746 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,430 psi | 82% | 2933 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,524 psi | 67% | 2795 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,027 psi | 56% | 2608 fps | 96.2% |
| ReloadSwiss RS 70 | 62.4 gr | 80% | 34,301 psi | 55% | 2608 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 48,704 psi | 78% | 2772 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,134 psi | 68% | 2697 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 52,823 psi | 85% | 2900 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 94% | 46,311 psi | 74% | 2838 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 82% | 42,192 psi | 68% | 2674 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,624 psi | 62% | 2602 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,446 psi | 84% | 2851 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,818 psi | 75% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 39,276 psi | 63% | 2631 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,294 psi | 69% | 2753 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,662 psi | 81% | 2844 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,938 psi | 83% | 2756 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,772 psi | 70% | 2621 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 40,393 psi | 65% | 2598 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 45,876 psi | 74% | 2831 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 51,677 psi | 83% | 2756 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,612 psi | 68% | 2700 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 31,807 psi | 51% | 2546 fps | 98.6% |
| Somchem S385 | <<locked>> | 92% | 44,019 psi | 71% | 2762 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 52,431 psi | 84% | 2743 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,718 psi | 78% | 2740 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,892 psi | 78% | 2749 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,611 psi | 65% | 2631 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 36,680 psi | 59% | 2595 fps | 97% |
| Vihtavuori N165 | <<locked>> | 96% | 43,279 psi | 69% | 2733 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 47,413 psi | 76% | 2743 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,230 psi | 58% | 2595 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 31,589 psi | 51% | 2539 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,911 psi | 58% | 2566 fps | 98.8% |
| Winchester 760 | <<locked>> | 82% | 40,103 psi | 64% | 2703 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 27,122 psi | 43% | 2480 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,676 psi | 81% | 2851 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 46,731 psi | 75% | 2805 fps | 95.3% |
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 91 powders for .300 H&H Mag. loaded with the .308 | 165gr | RWS Doppelkern. Alliant Reloder-26 delivers the highest muzzle velocity at 3,104 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,104 fps. Accurate 3100 gives the best case fill at 100 %, and 91 of the 91 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 165.0 gr projectile in 0.308" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, 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. Alliant Reloder-16, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for .300 H&H Mag. with the .308 | 165gr | RWS Doppelkern 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.