Load Specifications
Load data in caliber .300 H&H Mag. with .3085 | 150gr | Prvi Partizan SP bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Alliant Reloder-16.
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% | 55,898 psi | 90% | 2943 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,463 psi | 89% | 2969 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,983 psi | 87% | 2969 fps | 96.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,238 psi | 74% | 2917 fps | 97% |
| Accurate 4064 | <<locked>> | 88% | 55,564 psi | 89% | 3022 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,869 psi | 90% | 3110 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 55,288 psi | 89% | 3051 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 56,289 psi | 90% | 3051 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,983 psi | 87% | 2995 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,361 psi | 89% | 2976 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,216 psi | 89% | 3173 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,171 psi | 85% | 3018 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,577 psi | 86% | 3041 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 96% | 53,185 psi | 85% | 3114 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,404 psi | 87% | 3146 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,598 psi | 70% | 2943 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,588 psi | 80% | 3133 fps | 99% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,100 psi | 88% | 3061 fps | 99.6% |
| Bofors RP3 | <<locked>> | 88% | 53,954 psi | 87% | 3038 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 53,882 psi | 86% | 3009 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,448 psi | 89% | 2979 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,635 psi | 86% | 3022 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,723 psi | 88% | 3051 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 94% | 54,665 psi | 88% | 3100 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 92% | 54,926 psi | 88% | 3064 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 84% | 55,854 psi | 90% | 3061 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 53,069 psi | 85% | 3038 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,622 psi | 89% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,216 psi | 89% | 3140 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 57% | 1903 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,505 psi | 86% | 3009 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,057 psi | 90% | 3045 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,782 psi | 89% | 3035 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,303 psi | 89% | 3009 fps | 97.8% |
| IMR 4350 | <<locked>> | 96% | 54,244 psi | 87% | 3031 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,550 psi | 89% | 3038 fps | 97.8% |
| IMR 4831 | <<locked>> | 98% | 56,275 psi | 90% | 3100 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 54,940 psi | 88% | 3071 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,983 psi | 87% | 2995 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,245 psi | 89% | 3025 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,360 psi | 87% | 2972 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 55,695 psi | 89% | 3028 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,347 psi | 89% | 3035 fps | 98.8% |
| Lovex S070 | <<locked>> | 94% | 52,895 psi | 85% | 3015 fps | 97.6% |
| Norma 201 | <<locked>> | 84% | 53,867 psi | 86% | 2992 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,592 psi | 88% | 2995 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,391 psi | 90% | 3084 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,027 psi | 88% | 3084 fps | 96% |
| Norma MRPᴾ | <<locked>> | 100% | 49,052 psi | 79% | 3081 fps | 96.5% |
| Norma URP | <<locked>> | 96% | 54,795 psi | 88% | 3097 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 86% | 53,461 psi | 86% | 3051 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 96% | 53,490 psi | 86% | 3091 fps | 98.4% |
| Ramshot TAC | <<locked>> | 82% | 54,259 psi | 87% | 3012 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,041 psi | 87% | 3031 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,347 psi | 58% | 1949 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,897 psi | 88% | 3031 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,302 psi | 87% | 3110 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,853 psi | 86% | 3146 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,767 psi | 89% | 3136 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,781 psi | 88% | 3163 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 82% | 54,766 psi | 88% | 2976 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,607 psi | 88% | 2995 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,824 psi | 86% | 3028 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 53,882 psi | 86% | 3009 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,347 psi | 89% | 3035 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,245 psi | 89% | 3025 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,695 psi | 89% | 3028 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 52,895 psi | 85% | 3015 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,651 psi | 89% | 3091 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 52,895 psi | 85% | 2989 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,751 psi | 86% | 3018 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,998 psi | 88% | 2930 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,767 psi | 89% | 2930 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,332 psi | 89% | 2982 fps | 97.8% |
| Somchem S335 | <<locked>> | 84% | 54,592 psi | 88% | 2927 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,086 psi | 90% | 3038 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 54,056 psi | 87% | 3025 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 53,185 psi | 85% | 3100 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,431 psi | 84% | 3028 fps | 96.7% |
| Vihtavuori N133 | <<locked>> | 84% | 55,361 psi | 89% | 2913 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,447 psi | 87% | 2959 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,998 psi | 88% | 2969 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,535 psi | 89% | 3005 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,548 psi | 86% | 3038 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 82% | 54,534 psi | 87% | 2995 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 53,374 psi | 86% | 2966 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,072 psi | 90% | 3094 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,573 psi | 78% | 3031 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,519 psi | 86% | 3012 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,766 psi | 88% | 3045 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,911 psi | 88% | 3107 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,262 psi | 63% | 2963 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,635 psi | 86% | 3025 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% | 52,518 psi | 84% | 2894 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,542 psi | 73% | 2818 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 47,166 psi | 76% | 2844 fps | 95.2% |
| Accurate 3100 | <<locked>> | 96% | 40,277 psi | 65% | 2795 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 43,091 psi | 69% | 2815 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 34,301 psi | 55% | 2680 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 48,689 psi | 78% | 2936 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 41,220 psi | 66% | 2769 fps | 97.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,792 psi | 81% | 2943 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,851 psi | 83% | 2923 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,831 psi | 72% | 2979 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,321 psi | 66% | 2799 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,324 psi | 71% | 2871 fps | 98.6% |
| Alliant Reloder-16 | 58.2 gr | 82% | 34,214 psi | 55% | 2694 fps | 95.1% |
| Alliant Reloder-17 | 61.1 gr | 80% | 35,882 psi | 58% | 2766 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 90% | 31,792 psi | 51% | 2651 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 92% | 37,043 psi | 59% | 2844 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,167 psi | 77% | 2943 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 41,263 psi | 66% | 2805 fps | 99.1% |
| Bofors RP7 | <<locked>> | 88% | 47,485 psi | 76% | 2890 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,257 psi | 84% | 2927 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,241 psi | 81% | 2969 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,843 psi | 67% | 2808 fps | 97% |
| Hodgdon H414 | <<locked>> | 88% | 44,889 psi | 72% | 2920 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 88% | 48,414 psi | 78% | 2943 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 49,226 psi | 79% | 2949 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,559 psi | 47% | 2530 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,527 psi | 73% | 2920 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 90% | 47,805 psi | 77% | 3005 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,643 psi | 43% | 1703 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,123 psi | 76% | 2894 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 49,240 psi | 79% | 2940 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,308 psi | 69% | 2808 fps | 98.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,759 psi | 73% | 2831 fps | 95.7% |
| IMR 4350 | <<locked>> | 92% | 47,834 psi | 77% | 2917 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 46,209 psi | 74% | 2867 fps | 95.7% |
| IMR 4831 | <<locked>> | 84% | 35,549 psi | 57% | 2697 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 45,455 psi | 73% | 2904 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 50,792 psi | 81% | 2943 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,269 psi | 77% | 2913 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,211 psi | 77% | 2864 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 43,526 psi | 70% | 2815 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 40,509 psi | 65% | 2753 fps | 95.7% |
| Lovex S070 | <<locked>> | 88% | 43,888 psi | 70% | 2841 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 47,616 psi | 76% | 2884 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 48,051 psi | 77% | 2887 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,714 psi | 70% | 2854 fps | 98.9% |
| Norma 204 | <<locked>> | 94% | 51,401 psi | 82% | 3022 fps | 95.1% |
| Norma MRP | <<locked>> | 98% | 45,832 psi | 73% | 3015 fps | 95.6% |
| Norma URP | <<locked>> | 84% | 36,811 psi | 59% | 2740 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 43,598 psi | 70% | 2871 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 41,017 psi | 66% | 2844 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 50,691 psi | 81% | 2953 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,430 psi | 81% | 2969 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,093 psi | 43% | 1742 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,148 psi | 68% | 2789 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,253 psi | 76% | 2986 fps | 99% |
| ReloadSwiss RS 60 | 61.1 gr | 80% | 38,145 psi | 61% | 2838 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 36,506 psi | 59% | 2756 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 38,711 psi | 62% | 2825 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 51,517 psi | 83% | 2923 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,368 psi | 73% | 2831 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 38,783 psi | 62% | 2743 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 47,485 psi | 76% | 2890 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 40,509 psi | 65% | 2753 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,269 psi | 77% | 2913 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,526 psi | 70% | 2815 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 43,888 psi | 70% | 2841 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,900 psi | 64% | 2795 fps | 98% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,298 psi | 79% | 2927 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,224 psi | 76% | 2904 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,704 psi | 78% | 2831 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,814 psi | 65% | 2687 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 45,484 psi | 73% | 2808 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 48,443 psi | 78% | 2828 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,023 psi | 79% | 2920 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 39,450 psi | 63% | 2749 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 28,877 psi | 46% | 2566 fps | 96.3% |
| Somchem S385 | <<locked>> | 96% | 46,006 psi | 74% | 2910 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 49,110 psi | 79% | 2818 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,107 psi | 72% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,527 psi | 73% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,521 psi | 60% | 2677 fps | 99% |
| Vihtavuori N160 | <<locked>> | 82% | 35,897 psi | 58% | 2684 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 51,010 psi | 82% | 2940 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,947 psi | 70% | 2805 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 35,404 psi | 57% | 2684 fps | 95% |
| Vihtavuori N555 | <<locked>> | 88% | 32,474 psi | 52% | 2671 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,257 psi | 53% | 2598 fps | 96.9% |
| Winchester 748 | <<locked>> | 80% | 51,213 psi | 82% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,889 psi | 72% | 2920 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 92% | 30,139 psi | 48% | 2677 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,833 psi | 75% | 2907 fps | 99.6% |
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 .3085 | 150gr | Prvi Partizan SP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,903 fps to 3,173 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 0.3085" calls for a 1:15.5 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. Alliant Reloder-17, ReloadSwiss RS 60, Alliant Reloder-16 rank at the top here: for .300 H&H Mag. with the .3085 | 150gr | Prvi Partizan SP 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.