Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 150gr | NorthFork Bonded Core bullet and 93 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-17 and ReloadSwiss RS 60.
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 2015 | <<locked>> | 82% | 55,158 psi | 88% | 2930 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,491 psi | 87% | 2956 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,941 psi | 90% | 3022 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,243 psi | 85% | 2949 fps | 96.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,310 psi | 73% | 2897 fps | 96.6% |
| Accurate 4064 | <<locked>> | 88% | 54,650 psi | 88% | 3005 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,013 psi | 88% | 3097 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 54,375 psi | 87% | 3031 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 55,738 psi | 89% | 3038 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,345 psi | 86% | 2982 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,592 psi | 88% | 2963 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,389 psi | 87% | 3156 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,927 psi | 90% | 3061 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,333 psi | 90% | 3081 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,854 psi | 90% | 3156 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,374 psi | 86% | 3127 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,960 psi | 69% | 2927 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,559 psi | 78% | 3107 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,317 psi | 87% | 3045 fps | 99.5% |
| Bofors RP3 | <<locked>> | 88% | 53,127 psi | 85% | 3022 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 53,142 psi | 85% | 2989 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,824 psi | 88% | 2966 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,069 psi | 85% | 3012 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,911 psi | 86% | 3031 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 94% | 53,911 psi | 86% | 3087 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 92% | 54,215 psi | 87% | 3048 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 84% | 54,998 psi | 88% | 3045 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,854 psi | 90% | 3074 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,795 psi | 88% | 3077 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,375 psi | 87% | 3123 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 57% | 1896 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,289 psi | 90% | 3048 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,274 psi | 89% | 3028 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,187 psi | 88% | 3022 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,781 psi | 88% | 2995 fps | 97.6% |
| IMR 4350 | <<locked>> | 96% | 53,606 psi | 86% | 3015 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,839 psi | 88% | 3022 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 55,259 psi | 89% | 3084 fps | 99.6% |
| IMR 4895 | <<locked>> | 86% | 54,302 psi | 87% | 3058 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 53,345 psi | 86% | 2982 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,563 psi | 87% | 3009 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,780 psi | 86% | 2959 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 55,085 psi | 88% | 3015 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,563 psi | 87% | 3018 fps | 98.7% |
| Lovex S070 | <<locked>> | 96% | 55,492 psi | 89% | 3051 fps | 98% |
| Norma 201 | <<locked>> | 84% | 53,229 psi | 85% | 2979 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,954 psi | 87% | 2982 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,579 psi | 89% | 3068 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 48,283 psi | 77% | 3061 fps | 96.2% |
| Norma URP | <<locked>> | 96% | 53,737 psi | 86% | 3077 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 88% | 56,289 psi | 90% | 3094 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 98% | 56,246 psi | 90% | 3130 fps | 98.7% |
| Ramshot TAC | <<locked>> | 82% | 53,505 psi | 86% | 2995 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,214 psi | 85% | 3015 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,347 psi | 58% | 1942 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,186 psi | 87% | 3015 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,388 psi | 86% | 3094 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,084 psi | 85% | 3130 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,752 psi | 88% | 3117 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,896 psi | 86% | 3140 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 82% | 54,288 psi | 87% | 2963 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,983 psi | 87% | 2979 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,214 psi | 85% | 3015 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 53,142 psi | 85% | 2989 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,563 psi | 87% | 3018 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,563 psi | 87% | 3009 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,085 psi | 88% | 3015 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,492 psi | 89% | 3051 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,882 psi | 88% | 3077 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,709 psi | 89% | 3031 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 52,939 psi | 85% | 3002 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,578 psi | 88% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,897 psi | 88% | 2913 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,665 psi | 88% | 2969 fps | 97.6% |
| Somchem S335 | <<locked>> | 84% | 53,983 psi | 87% | 2913 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,332 psi | 89% | 3022 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 53,200 psi | 85% | 3009 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,695 psi | 89% | 3136 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,547 psi | 83% | 3009 fps | 96.4% |
| Vihtavuori N133 | <<locked>> | 84% | 54,940 psi | 88% | 2904 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,722 psi | 86% | 2943 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,389 psi | 87% | 2959 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,752 psi | 88% | 2992 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,333 psi | 90% | 3077 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 53,664 psi | 86% | 2979 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,188 psi | 90% | 3002 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,376 psi | 89% | 3081 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,601 psi | 76% | 3009 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,362 psi | 90% | 3051 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,099 psi | 87% | 3031 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,157 psi | 87% | 3091 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,609 psi | 62% | 2940 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 52,866 psi | 85% | 3009 fps | 100% |
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 2015 | <<locked>> | 80% | 52,011 psi | 83% | 2884 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,831 psi | 72% | 2802 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,301 psi | 84% | 2969 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 49,835 psi | 80% | 2890 fps | 95.8% |
| Accurate 3100 | <<locked>> | 98% | 42,366 psi | 68% | 2838 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 42,380 psi | 68% | 2799 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 36,085 psi | 58% | 2720 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 48,109 psi | 77% | 2920 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 40,814 psi | 65% | 2759 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,154 psi | 80% | 2927 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,024 psi | 82% | 2910 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,034 psi | 71% | 2956 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,669 psi | 65% | 2782 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,700 psi | 70% | 2851 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 35,911 psi | 58% | 2736 fps | 95.7% |
| Alliant Reloder-17 | 60.3 gr | 80% | 35,360 psi | 57% | 2749 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 31,256 psi | 50% | 2631 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 92% | 36,361 psi | 58% | 2825 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,413 psi | 76% | 2923 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 40,640 psi | 65% | 2789 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 46,934 psi | 75% | 2874 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,634 psi | 83% | 2913 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,443 psi | 79% | 2949 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,278 psi | 66% | 2792 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 44,150 psi | 71% | 2900 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 90% | 50,952 psi | 82% | 2989 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 48,573 psi | 78% | 2933 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 31,024 psi | 50% | 2569 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,701 psi | 72% | 2900 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 90% | 47,007 psi | 75% | 2982 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,716 psi | 43% | 1699 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,499 psi | 75% | 2877 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 48,428 psi | 78% | 2923 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,873 psi | 69% | 2795 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,223 psi | 73% | 2815 fps | 95.4% |
| IMR 4350 | <<locked>> | 92% | 47,166 psi | 76% | 2897 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 45,542 psi | 73% | 2848 fps | 95.4% |
| IMR 4831 | <<locked>> | 84% | 34,998 psi | 56% | 2680 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 44,802 psi | 72% | 2884 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 50,154 psi | 80% | 2927 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,616 psi | 76% | 2897 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,601 psi | 76% | 2851 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 42,917 psi | 69% | 2799 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 39,958 psi | 64% | 2736 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 43,163 psi | 69% | 2825 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 46,992 psi | 75% | 2867 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 47,384 psi | 76% | 2874 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,076 psi | 69% | 2841 fps | 98.7% |
| Norma MRP | <<locked>> | 98% | 45,034 psi | 72% | 2992 fps | 95.2% |
| Norma URP | <<locked>> | 84% | 36,274 psi | 58% | 2723 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 42,815 psi | 69% | 2851 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 40,364 psi | 65% | 2825 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 50,169 psi | 80% | 2936 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,835 psi | 80% | 2956 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,977 psi | 43% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,655 psi | 67% | 2772 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,340 psi | 74% | 2963 fps | 98.8% |
| ReloadSwiss RS 60 | 60.3 gr | 80% | 37,652 psi | 60% | 2822 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 35,824 psi | 57% | 2736 fps | 95.1% |
| ReloadSwiss RS 70 | 65.8 gr | 86% | 38,130 psi | 61% | 2805 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 51,068 psi | 82% | 2913 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,744 psi | 72% | 2818 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 38,130 psi | 61% | 2726 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 46,934 psi | 75% | 2874 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,958 psi | 64% | 2736 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,616 psi | 76% | 2897 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,917 psi | 69% | 2799 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 43,163 psi | 69% | 2825 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,131 psi | 63% | 2779 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,762 psi | 78% | 2913 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,441 psi | 74% | 2884 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,008 psi | 77% | 2815 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,219 psi | 64% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,991 psi | 72% | 2792 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 47,776 psi | 77% | 2815 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,225 psi | 77% | 2904 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 38,870 psi | 62% | 2733 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 28,514 psi | 46% | 2552 fps | 96% |
| Somchem S385 | <<locked>> | 98% | 48,341 psi | 78% | 2949 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 48,428 psi | 78% | 2805 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,396 psi | 71% | 2795 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,875 psi | 72% | 2805 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,956 psi | 59% | 2664 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 35,331 psi | 57% | 2667 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 50,372 psi | 81% | 2923 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,352 psi | 70% | 2792 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 37,347 psi | 60% | 2726 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 90% | 34,127 psi | 55% | 2717 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,721 psi | 52% | 2582 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 50,531 psi | 81% | 2976 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,150 psi | 71% | 2900 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 31,575 psi | 51% | 2723 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,224 psi | 74% | 2890 fps | 99.5% |
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 93 powders for .300 H&H Mag. loaded with the .308 | 150gr | NorthFork Bonded Core. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,896 fps to 3,156 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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-17, ReloadSwiss RS 60 rank at the top here: for .300 H&H Mag. with the .308 | 150gr | NorthFork Bonded Core 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.