Load Specifications
Bullet:.308 | 150gr | Norma SPFN
Bullet Manufacturer:Norma
Bullet Weight:150 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 H&H Mag. load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:85.9 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Load data in caliber .300 H&H Mag. with .308 | 150gr | Norma SPFN bullet and 92 powders. The key underlying parameters are shown in the table above.
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% | 54,259 psi | 87% | 2963 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,898 psi | 90% | 3015 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,994 psi | 79% | 2976 fps | 97.8% |
| Accurate 4064 | <<locked>> | 86% | 54,592 psi | 88% | 3015 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,056 psi | 88% | 3110 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 53,751 psi | 86% | 3038 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 88% | 54,926 psi | 88% | 3041 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,260 psi | 90% | 3140 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,941 psi | 90% | 3038 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,838 psi | 86% | 3163 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,521 psi | 89% | 3068 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,927 psi | 90% | 3091 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,753 psi | 89% | 3169 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 53,417 psi | 86% | 3140 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,259 psi | 89% | 3123 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,108 psi | 74% | 3002 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,364 psi | 65% | 2890 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,649 psi | 84% | 3196 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,751 psi | 86% | 3051 fps | 99.6% |
| Bofors RP3 | <<locked>> | 88% | 56,318 psi | 90% | 3084 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 55,869 psi | 90% | 3054 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,941 psi | 90% | 3068 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 53,345 psi | 86% | 3038 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 92% | 53,795 psi | 86% | 3097 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 90% | 53,911 psi | 86% | 3061 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 82% | 54,317 psi | 87% | 3048 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,985 psi | 90% | 3091 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,433 psi | 87% | 3084 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,882 psi | 86% | 3130 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,056 psi | 58% | 1926 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,608 psi | 89% | 3051 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,926 psi | 88% | 3035 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,563 psi | 87% | 3028 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,925 psi | 86% | 3002 fps | 97.8% |
| IMR 4350 | <<locked>> | 94% | 53,316 psi | 85% | 3028 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,273 psi | 87% | 3031 fps | 97.8% |
| IMR 4831 | <<locked>> | 96% | 55,376 psi | 89% | 3097 fps | 99.7% |
| IMR 4895 | <<locked>> | 84% | 53,882 psi | 86% | 3068 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,941 psi | 90% | 3038 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 53,911 psi | 86% | 3012 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,217 psi | 90% | 3015 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,549 psi | 87% | 3022 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,070 psi | 87% | 3025 fps | 98.9% |
| Lovex S070 | <<locked>> | 94% | 55,317 psi | 89% | 3068 fps | 98.3% |
| Norma 201 | <<locked>> | 84% | 56,086 psi | 90% | 3038 fps | 100% |
| Norma 202 | <<locked>> | 82% | 53,185 psi | 85% | 2982 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,158 psi | 88% | 3074 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,896 psi | 86% | 3077 fps | 96.1% |
| Norma MRPᴾ | <<locked>> | 100% | 51,808 psi | 83% | 3143 fps | 97.5% |
| Norma URP | <<locked>> | 94% | 53,737 psi | 86% | 3091 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 86% | 55,825 psi | 90% | 3097 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 56,333 psi | 90% | 3146 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 56,231 psi | 90% | 3061 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,231 psi | 90% | 3077 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,651 psi | 59% | 1972 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 53,432 psi | 86% | 3018 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 53,011 psi | 85% | 3100 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 52,939 psi | 85% | 3140 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,839 psi | 88% | 3130 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 53,519 psi | 86% | 3153 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 84% | 53,330 psi | 86% | 2982 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,391 psi | 90% | 3077 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,273 psi | 87% | 3107 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 92% | 55,869 psi | 90% | 3054 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,070 psi | 87% | 3025 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,911 psi | 86% | 3012 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,549 psi | 87% | 3022 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,317 psi | 89% | 3068 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,476 psi | 87% | 3084 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,071 psi | 88% | 3038 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,724 psi | 89% | 3061 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,693 psi | 86% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,433 psi | 87% | 2923 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,041 psi | 87% | 2976 fps | 97.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,766 psi | 86% | 3100 fps | 96.4% |
| Somchem S335 | <<locked>> | 82% | 53,301 psi | 85% | 2917 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,723 psi | 88% | 3028 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,304 psi | 90% | 3071 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 56,217 psi | 90% | 3153 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,071 psi | 88% | 3084 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 82% | 54,172 psi | 87% | 2907 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 53,345 psi | 86% | 2949 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,867 psi | 86% | 2963 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,360 psi | 87% | 2999 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,101 psi | 90% | 3091 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 86% | 55,535 psi | 89% | 3009 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,085 psi | 88% | 3091 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,329 psi | 82% | 3084 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,999 psi | 90% | 3061 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,795 psi | 86% | 3097 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,510 psi | 67% | 3035 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,883 psi | 90% | 3071 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 47,543 psi | 76% | 2858 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,963 psi | 74% | 2835 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 39,885 psi | 64% | 2795 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 44,991 psi | 72% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,692 psi | 54% | 2671 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 50,459 psi | 81% | 2979 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 42,830 psi | 69% | 2815 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 96% | 49,356 psi | 79% | 3015 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,533 psi | 84% | 2982 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,818 psi | 75% | 3028 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,018 psi | 69% | 2844 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,050 psi | 74% | 2913 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,388 psi | 54% | 2680 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,623 psi | 60% | 2822 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,675 psi | 78% | 3005 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 88% | 31,415 psi | 50% | 2648 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,884 psi | 61% | 2828 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,448 psi | 58% | 2841 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,299 psi | 81% | 2992 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 43,192 psi | 69% | 2851 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 46,412 psi | 74% | 2881 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,330 psi | 84% | 3012 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,816 psi | 70% | 2858 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 43,976 psi | 71% | 2910 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 86% | 47,311 psi | 76% | 2936 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 51,024 psi | 82% | 2992 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,821 psi | 49% | 2572 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,456 psi | 76% | 2963 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 46,673 psi | 75% | 2995 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,919 psi | 43% | 1722 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,805 psi | 78% | 2936 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 51,401 psi | 82% | 2982 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,020 psi | 72% | 2854 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,427 psi | 76% | 2881 fps | 96.5% |
| IMR 4350 | <<locked>> | 90% | 47,050 psi | 75% | 2913 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,063 psi | 72% | 2858 fps | 95.7% |
| IMR 4831 | <<locked>> | 82% | 34,853 psi | 56% | 2684 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 47,239 psi | 76% | 2946 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 52,533 psi | 84% | 2982 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,531 psi | 81% | 2959 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,864 psi | 80% | 2910 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 45,281 psi | 73% | 2858 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 39,697 psi | 64% | 2743 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 43,047 psi | 69% | 2835 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 49,400 psi | 79% | 2927 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,879 psi | 80% | 2930 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,426 psi | 73% | 2900 fps | 99.3% |
| Norma 204 | <<locked>> | 92% | 50,256 psi | 81% | 3012 fps | 95.2% |
| Norma MRP | <<locked>> | 96% | 45,005 psi | 72% | 3009 fps | 95.7% |
| Norma URP | <<locked>> | 82% | 36,230 psi | 58% | 2733 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 45,542 psi | 73% | 2917 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 40,176 psi | 64% | 2835 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 52,736 psi | 85% | 2999 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,634 psi | 84% | 3018 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,354 psi | 44% | 1765 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,918 psi | 70% | 2838 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,414 psi | 79% | 3035 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,987 psi | 64% | 2890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,897 psi | 58% | 2746 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 37,826 psi | 61% | 2815 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 47,166 psi | 76% | 2877 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,683 psi | 65% | 2792 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 50,778 psi | 81% | 3045 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 86% | 46,412 psi | 74% | 2881 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 39,697 psi | 64% | 2743 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,531 psi | 81% | 2959 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,281 psi | 73% | 2858 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 43,047 psi | 69% | 2835 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,626 psi | 67% | 2844 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,488 psi | 83% | 2979 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,023 psi | 79% | 2946 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,328 psi | 81% | 2867 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,322 psi | 68% | 2723 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 44,396 psi | 71% | 2799 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 50,299 psi | 81% | 3038 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 50,125 psi | 80% | 2867 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,155 psi | 82% | 2969 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 41,104 psi | 66% | 2795 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 30,385 psi | 49% | 2618 fps | 97.2% |
| Somchem S385 | <<locked>> | 94% | 45,150 psi | 72% | 2904 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 50,807 psi | 81% | 2858 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,920 psi | 75% | 2848 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,442 psi | 76% | 2861 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,291 psi | 63% | 2726 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 35,143 psi | 56% | 2674 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 45,876 psi | 74% | 2851 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,824 psi | 56% | 2674 fps | 95% |
| Vihtavuori N555 | <<locked>> | 86% | 32,213 psi | 52% | 2667 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,780 psi | 56% | 2648 fps | 97.7% |
| Winchester 760 | <<locked>> | 86% | 44,150 psi | 71% | 2913 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,631 psi | 48% | 2671 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,834 psi | 78% | 2953 fps | 99.9% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 111 powders for .300 H&H Mag. loaded with the .308 | 150gr | Norma SPFN. Alliant Reloder-26 delivers the highest muzzle velocity at 3,196 fps; across all powders the maximum-charge window runs from 1,926 fps to 3,196 fps. Accurate 3100 gives the best case fill at 100 %, and 111 of the 111 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. Accurate 3100, Accurate High Country, Accurate MAGPRO 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. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.