Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 150gr | Berger Target FB 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% | 55,114 psi | 88% | 2927 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,476 psi | 87% | 2956 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,927 psi | 90% | 3022 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,011 psi | 85% | 2946 fps | 96.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,324 psi | 73% | 2897 fps | 96.6% |
| Accurate 4064 | <<locked>> | 88% | 54,592 psi | 88% | 3005 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,737 psi | 88% | 3091 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 54,375 psi | 87% | 3031 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 55,477 psi | 89% | 3031 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,316 psi | 85% | 2979 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,505 psi | 87% | 2959 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,346 psi | 87% | 3156 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,883 psi | 90% | 3058 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,318 psi | 90% | 3081 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,622 psi | 89% | 3150 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,374 psi | 86% | 3130 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,728 psi | 69% | 2923 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,559 psi | 78% | 3107 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,273 psi | 87% | 3045 fps | 99.5% |
| Bofors RP3 | <<locked>> | 88% | 53,084 psi | 85% | 3022 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,333 psi | 90% | 3041 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,824 psi | 88% | 2966 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,765 psi | 85% | 3005 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,867 psi | 86% | 3031 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 94% | 53,679 psi | 86% | 3081 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 92% | 54,215 psi | 87% | 3045 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 84% | 54,926 psi | 88% | 3041 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,608 psi | 89% | 3071 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,766 psi | 88% | 3077 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,143 psi | 87% | 3117 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,853 psi | 57% | 1900 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,028 psi | 90% | 3045 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,259 psi | 89% | 3028 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,882 psi | 88% | 3015 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,563 psi | 87% | 2989 fps | 97.6% |
| IMR 4350 | <<locked>> | 96% | 53,359 psi | 86% | 3012 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,868 psi | 88% | 3022 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 55,274 psi | 89% | 3081 fps | 99.6% |
| IMR 4895 | <<locked>> | 86% | 54,056 psi | 87% | 3054 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 53,316 psi | 85% | 2979 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,302 psi | 87% | 3005 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,766 psi | 86% | 2956 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 55,056 psi | 88% | 3015 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,346 psi | 87% | 3012 fps | 98.6% |
| Lovex S070 | <<locked>> | 96% | 55,506 psi | 89% | 3054 fps | 98% |
| Norma 201 | <<locked>> | 84% | 53,171 psi | 85% | 2976 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,693 psi | 86% | 2979 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,521 psi | 89% | 3068 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 48,022 psi | 77% | 3054 fps | 96.1% |
| Norma URP | <<locked>> | 96% | 53,737 psi | 86% | 3077 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 88% | 56,260 psi | 90% | 3094 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 98% | 56,014 psi | 90% | 3127 fps | 98.7% |
| Ramshot TAC | <<locked>> | 82% | 53,461 psi | 86% | 2995 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,229 psi | 85% | 3015 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,260 psi | 58% | 1939 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,911 psi | 86% | 3009 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,316 psi | 85% | 3091 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,055 psi | 85% | 3130 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,476 psi | 87% | 3110 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,693 psi | 86% | 3136 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 82% | 53,998 psi | 87% | 2959 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,664 psi | 86% | 2976 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,420 psi | 90% | 3064 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 56,333 psi | 90% | 3041 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,346 psi | 87% | 3012 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,302 psi | 87% | 3005 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,056 psi | 88% | 3015 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,506 psi | 89% | 3054 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,592 psi | 88% | 3074 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,738 psi | 89% | 3031 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 52,910 psi | 85% | 2999 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,288 psi | 87% | 2913 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,882 psi | 88% | 2913 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,418 psi | 87% | 2963 fps | 97.5% |
| Somchem S335 | <<locked>> | 84% | 53,925 psi | 86% | 2910 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,317 psi | 89% | 3022 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 53,214 psi | 85% | 3009 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,680 psi | 89% | 3136 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,547 psi | 83% | 3009 fps | 96.4% |
| Vihtavuori N133 | <<locked>> | 84% | 54,650 psi | 88% | 2897 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,679 psi | 86% | 2943 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,389 psi | 87% | 2959 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,520 psi | 87% | 2986 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,057 psi | 90% | 3074 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 82% | 53,592 psi | 86% | 2979 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,144 psi | 90% | 3002 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,143 psi | 88% | 3077 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,543 psi | 76% | 3009 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,376 psi | 90% | 3048 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,824 psi | 86% | 3028 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 53,925 psi | 86% | 3084 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,450 psi | 62% | 2933 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 52,823 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% | 51,953 psi | 83% | 2881 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,759 psi | 72% | 2802 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,272 psi | 84% | 2966 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 49,632 psi | 80% | 2887 fps | 95.7% |
| Accurate 3100 | <<locked>> | 98% | 42,148 psi | 68% | 2831 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 42,337 psi | 68% | 2795 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 36,056 psi | 58% | 2720 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 47,863 psi | 77% | 2917 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 40,785 psi | 65% | 2756 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,908 psi | 80% | 2923 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,995 psi | 82% | 2910 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,005 psi | 71% | 2956 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,654 psi | 65% | 2779 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,453 psi | 70% | 2844 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 35,708 psi | 57% | 2733 fps | 95.6% |
| Alliant Reloder-17 | 60.2 gr | 80% | 35,346 psi | 57% | 2749 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 31,227 psi | 50% | 2628 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 92% | 36,361 psi | 58% | 2825 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,384 psi | 76% | 2923 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 40,596 psi | 65% | 2789 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 46,717 psi | 75% | 2871 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,590 psi | 83% | 2910 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,385 psi | 79% | 2949 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,220 psi | 66% | 2789 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 43,918 psi | 70% | 2894 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 90% | 50,749 psi | 81% | 2982 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 48,312 psi | 77% | 2927 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 31,009 psi | 50% | 2569 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,643 psi | 72% | 2900 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 90% | 46,775 psi | 75% | 2976 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 43% | 1696 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,441 psi | 74% | 2877 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 48,385 psi | 78% | 2920 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,859 psi | 69% | 2795 fps | 98.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,179 psi | 72% | 2815 fps | 95.4% |
| IMR 4350 | <<locked>> | 92% | 47,166 psi | 76% | 2897 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 45,484 psi | 73% | 2848 fps | 95.4% |
| IMR 4831 | <<locked>> | 84% | 34,795 psi | 56% | 2674 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 44,556 psi | 71% | 2881 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 49,908 psi | 80% | 2923 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,543 psi | 76% | 2897 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,558 psi | 76% | 2848 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 42,844 psi | 69% | 2799 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 39,958 psi | 64% | 2736 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 43,149 psi | 69% | 2822 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 46,920 psi | 75% | 2867 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 47,326 psi | 76% | 2874 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,844 psi | 69% | 2835 fps | 98.7% |
| Norma MRP | <<locked>> | 98% | 44,817 psi | 72% | 2989 fps | 95.1% |
| Norma URP | <<locked>> | 84% | 36,245 psi | 58% | 2723 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 42,786 psi | 69% | 2851 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 42,946 psi | 69% | 2884 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 49,951 psi | 80% | 2930 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,835 psi | 80% | 2956 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 43% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,597 psi | 67% | 2772 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,325 psi | 74% | 2963 fps | 98.8% |
| ReloadSwiss RS 60 | 60.2 gr | 80% | 37,623 psi | 60% | 2822 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 35,781 psi | 57% | 2736 fps | 95.1% |
| ReloadSwiss RS 70 | 65.7 gr | 86% | 38,116 psi | 61% | 2805 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 50,981 psi | 82% | 2910 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,701 psi | 72% | 2815 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 38,116 psi | 61% | 2726 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 46,717 psi | 75% | 2871 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,958 psi | 64% | 2736 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,543 psi | 76% | 2897 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,844 psi | 69% | 2799 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 43,149 psi | 69% | 2822 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,073 psi | 63% | 2776 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,472 psi | 78% | 2907 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,412 psi | 74% | 2884 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,979 psi | 77% | 2815 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,161 psi | 64% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,759 psi | 72% | 2789 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 47,761 psi | 77% | 2815 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,240 psi | 77% | 2904 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 38,798 psi | 62% | 2730 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 28,326 psi | 45% | 2546 fps | 95.9% |
| Somchem S385 | <<locked>> | 98% | 48,109 psi | 77% | 2946 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 48,399 psi | 78% | 2805 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,309 psi | 71% | 2795 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,846 psi | 72% | 2802 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,927 psi | 59% | 2661 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 35,317 psi | 57% | 2667 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 50,299 psi | 81% | 2923 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,352 psi | 70% | 2792 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 37,159 psi | 60% | 2723 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 34,084 psi | 55% | 2717 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,692 psi | 52% | 2579 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 50,270 psi | 81% | 2969 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,135 psi | 71% | 2900 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 31,546 psi | 51% | 2720 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,195 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 | Berger Target FB. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,900 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 | Berger Target FB 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.