Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 175gr | SAKO Blade bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.
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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 55,172 psi | 86% | 2966 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,376 psi | 88% | 3005 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 53,940 psi | 85% | 3058 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 57,392 psi | 90% | 2966 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,580 psi | 90% | 3064 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 55,332 psi | 87% | 3068 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,472 psi | 78% | 2956 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,077 psi | 69% | 2910 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,522 psi | 90% | 3064 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,853 psi | 86% | 3022 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,087 psi | 89% | 3054 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,274 psi | 87% | 3061 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,521 psi | 89% | 3035 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,927 psi | 88% | 3097 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 57,159 psi | 90% | 3127 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,072 psi | 89% | 3025 fps | 96.2% |
| Bofors RP15 | <<locked>> | 96% | 54,259 psi | 85% | 3041 fps | 99.1% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,793 psi | 81% | 3028 fps | 98.4% |
| Bofors RP5 | <<locked>> | 94% | 55,274 psi | 87% | 3061 fps | 99.3% |
| Bofors RP7 | <<locked>> | 84% | 55,201 psi | 87% | 2953 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,824 psi | 86% | 3054 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 84% | 54,592 psi | 86% | 3002 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 57,188 psi | 90% | 3018 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 55,201 psi | 87% | 3005 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 54,157 psi | 85% | 2986 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 54,085 psi | 85% | 2930 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,810 psi | 86% | 3169 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 55,129 psi | 86% | 3038 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,043 psi | 58% | 1896 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,000 psi | 89% | 2992 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,768 psi | 89% | 2979 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 56,826 psi | 89% | 2995 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,202 psi | 88% | 2989 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 96% | 57,130 psi | 90% | 3107 fps | 98.8% |
| Lovex S065 | <<locked>> | 86% | 57,217 psi | 90% | 2972 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,492 psi | 87% | 2969 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,231 psi | 88% | 2986 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,404 psi | 85% | 2992 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 39,508 psi | 62% | 2822 fps | 97.3% |
| Norma MRP | <<locked>> | 92% | 55,187 psi | 86% | 3081 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 55,013 psi | 86% | 2989 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,722 psi | 84% | 3061 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 57,537 psi | 90% | 3048 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 56,217 psi | 88% | 3054 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,855 psi | 59% | 1942 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,536 psi | 89% | 3025 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,114 psi | 86% | 3058 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,738 psi | 87% | 3166 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,444 psi | 79% | 3035 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 82% | 56,449 psi | 88% | 2953 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 55,013 psi | 86% | 2976 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 92% | 56,420 psi | 88% | 3041 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 55,201 psi | 87% | 2953 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,217 psi | 90% | 2972 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,492 psi | 87% | 2969 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,217 psi | 88% | 2822 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,623 psi | 89% | 2927 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,985 psi | 88% | 3035 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 56,159 psi | 88% | 2943 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,652 psi | 89% | 2969 fps | 98.1% |
| Somchem S365 | <<locked>> | 88% | 55,463 psi | 87% | 2989 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,985 psi | 89% | 3012 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 57,479 psi | 90% | 2917 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,739 psi | 89% | 2982 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,623 psi | 89% | 2992 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 86% | 55,869 psi | 88% | 2982 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,839 psi | 86% | 3005 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,042 psi | 86% | 3077 fps | 98.1% |
| Vihtavuori N565 | <<locked>> | 98% | 54,723 psi | 86% | 3051 fps | 98.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,503 psi | 81% | 3041 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,347 psi | 88% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,781 psi | 86% | 3005 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 54,375 psi | 85% | 3114 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,014 psi | 89% | 3009 fps | 99.4% |
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 3100 | <<locked>> | 80% | 33,895 psi | 53% | 2552 fps | 96.7% |
| Accurate 4350 | <<locked>> | 80% | 45,818 psi | 72% | 2825 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 88% | 46,789 psi | 73% | 2923 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 53,853 psi | 84% | 2910 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,305 psi | 60% | 2694 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 86% | 41,959 psi | 66% | 2805 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 96% | 43,120 psi | 68% | 2825 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 92% | 33,721 psi | 53% | 2648 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,106 psi | 69% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,039 psi | 80% | 2959 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,305 psi | 60% | 2687 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 84% | 39,117 psi | 61% | 2743 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,706 psi | 51% | 2585 fps | 99.3% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,371 psi | 48% | 2539 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,839 psi | 56% | 2720 fps | 98.6% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,606 psi | 84% | 2966 fps | 95.4% |
| Bofors RP15 | <<locked>> | 86% | 38,899 psi | 61% | 2736 fps | 95.6% |
| Bofors RP30 | <<locked>> | 94% | 42,018 psi | 66% | 2835 fps | 96% |
| Bofors RP5 | <<locked>> | 84% | 39,117 psi | 61% | 2743 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 48,501 psi | 76% | 2835 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 41,365 psi | 65% | 2789 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 47,703 psi | 75% | 2881 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 50,285 psi | 79% | 2900 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 44,904 psi | 70% | 2815 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 44,063 psi | 69% | 2799 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,437 psi | 65% | 2713 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,376 psi | 57% | 2756 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 47,427 psi | 74% | 2907 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,731 psi | 43% | 1696 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,106 psi | 69% | 2762 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,024 psi | 78% | 2861 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 43,584 psi | 68% | 2772 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,511 psi | 68% | 2753 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 88% | 43,192 psi | 68% | 2844 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 47,442 psi | 74% | 2808 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 45,759 psi | 72% | 2795 fps | 99% |
| Lovex S071 | <<locked>> | 82% | 30,980 psi | 49% | 2474 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 44,048 psi | 69% | 2799 fps | 97% |
| Norma 217 | <<locked>> | 96% | 34,490 psi | 54% | 2694 fps | 95.2% |
| Norma MRP | 75.7 gr | 80% | 35,578 psi | 56% | 2684 fps | 96% |
| Norma URP | <<locked>> | 80% | 45,034 psi | 71% | 2815 fps | 99.9% |
| Ramshot Grand | <<locked>> | 88% | 43,018 psi | 67% | 2851 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 80% | 43,859 psi | 69% | 2808 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 35,491 psi | 56% | 2651 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,224 psi | 44% | 1736 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,774 psi | 72% | 2844 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,193 psi | 69% | 2864 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 35,592 psi | 56% | 2730 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 46,601 psi | 73% | 2959 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 52,852 psi | 83% | 2897 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 42,264 psi | 66% | 2733 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 37,492 psi | 59% | 2667 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 48,501 psi | 76% | 2835 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,442 psi | 74% | 2808 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 45,759 psi | 72% | 2795 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,866 psi | 83% | 2772 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,325 psi | 73% | 2753 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,159 psi | 58% | 2664 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 52,634 psi | 82% | 2890 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 46,224 psi | 72% | 2785 fps | 95.9% |
| Somchem S365 | <<locked>> | 80% | 42,032 psi | 66% | 2769 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,072 psi | 60% | 2654 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 80% | 50,430 psi | 79% | 2812 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,528 psi | 73% | 2812 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,259 psi | 55% | 2579 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 45,716 psi | 72% | 2812 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,564 psi | 57% | 2661 fps | 99.2% |
| Vihtavuori N560 | 81.4 gr | 86% | 44,440 psi | 70% | 2874 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 92% | 44,382 psi | 70% | 2858 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 98% | 47,834 psi | 75% | 2972 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,701 psi | 72% | 2772 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,703 psi | 75% | 2881 fps | 99.2% |
| Winchester StaBALL HD | 74.9 gr | 80% | 28,906 psi | 45% | 2585 fps | 99.3% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,333 psi | 59% | 2635 fps | 95.1% |
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 79 powders for .300 Norma Mag. loaded with the .308 | 175gr | SAKO Blade. Hodgdon Retumbo delivers the highest muzzle velocity at 3,169 fps; across all powders the maximum-charge window runs from 1,896 fps to 3,169 fps. ADI AR 2217 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for .300 Norma Mag. with the .308 | 175gr | SAKO Blade they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, IMR 8133 Enduron 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.