Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 168gr | Frontier PH HPFB bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Ramshot Grand and Accurate MAGPRO.
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% | 54,694 psi | 86% | 3005 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 56,057 psi | 88% | 3048 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 56,115 psi | 88% | 3159 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 94% | 57,203 psi | 90% | 3159 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 56,956 psi | 89% | 3005 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,681 psi | 89% | 3100 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 94% | 54,476 psi | 85% | 3100 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,994 psi | 77% | 2986 fps | 97.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,584 psi | 68% | 2940 fps | 98.7% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 57,000 psi | 89% | 3097 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 57,000 psi | 89% | 3097 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,797 psi | 89% | 3104 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,215 psi | 85% | 3061 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,289 psi | 88% | 3087 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,476 psi | 85% | 3097 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,637 psi | 87% | 3074 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,911 psi | 86% | 3130 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,159 psi | 88% | 3163 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 57,305 psi | 90% | 3140 fps | 99.2% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,966 psi | 80% | 3058 fps | 97.9% |
| Bofors RP5 | <<locked>> | 94% | 54,476 psi | 85% | 3097 fps | 99% |
| Bofors RP7 | <<locked>> | 84% | 54,694 psi | 86% | 2989 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,940 psi | 85% | 3084 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 86% | 57,696 psi | 90% | 3104 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 56,652 psi | 89% | 3058 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 92% | 54,404 psi | 85% | 3035 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,058 psi | 89% | 3081 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,043 psi | 89% | 3025 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,882 psi | 84% | 3199 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 84% | 54,288 psi | 85% | 3074 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,028 psi | 58% | 1929 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,275 psi | 88% | 3028 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,101 psi | 88% | 3015 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 56,362 psi | 88% | 3038 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,477 psi | 87% | 3022 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 96% | 56,130 psi | 88% | 3140 fps | 98.3% |
| Lovex S065 | <<locked>> | 86% | 56,884 psi | 89% | 3015 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,998 psi | 86% | 3009 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,753 psi | 87% | 3025 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,508 psi | 90% | 3087 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 39,262 psi | 62% | 2858 fps | 96.7% |
| Norma MRP | <<locked>> | 92% | 54,302 psi | 85% | 3117 fps | 99.7% |
| Norma URP | <<locked>> | 86% | 54,346 psi | 85% | 3028 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,884 psi | 89% | 3163 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 56,956 psi | 89% | 3091 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,216 psi | 87% | 3087 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,855 psi | 59% | 1975 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,696 psi | 90% | 3107 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,014 psi | 88% | 3068 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,186 psi | 85% | 3094 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,708 psi | 86% | 3196 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 55,985 psi | 88% | 2992 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,346 psi | 85% | 3009 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 92% | 55,840 psi | 88% | 3077 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 84% | 54,694 psi | 86% | 2989 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,884 psi | 89% | 3015 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,998 psi | 86% | 3009 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,653 psi | 90% | 3054 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,825 psi | 87% | 2864 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,115 psi | 88% | 2966 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,405 psi | 87% | 3071 fps | 99.1% |
| Somchem S355 | <<locked>> | 82% | 55,651 psi | 87% | 2989 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,985 psi | 88% | 3002 fps | 97.6% |
| Somchem S365 | <<locked>> | 88% | 54,679 psi | 86% | 3031 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,289 psi | 88% | 3048 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 56,927 psi | 89% | 2959 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,231 psi | 88% | 3022 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,840 psi | 88% | 3025 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 86% | 55,448 psi | 87% | 3025 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,433 psi | 85% | 3051 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,172 psi | 85% | 3107 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 98% | 53,998 psi | 85% | 3084 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,738 psi | 87% | 2979 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,085 psi | 85% | 3041 fps | 99.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,450 psi | 90% | 3215 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,202 psi | 88% | 3041 fps | 99% |
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% | 33,939 psi | 53% | 2592 fps | 96.2% |
| Accurate 4350 | <<locked>> | 80% | 45,542 psi | 71% | 2867 fps | 99.8% |
| Accurate High Country | <<locked>> | 84% | 42,438 psi | 67% | 2887 fps | 95.1% |
| Accurate MAGPRO | 86.6 gr | 90% | 49,530 psi | 78% | 3022 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 53,447 psi | 84% | 2953 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 40,596 psi | 64% | 2789 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 88% | 44,382 psi | 70% | 2900 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 96% | 42,801 psi | 67% | 2858 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 94% | 35,911 psi | 56% | 2746 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 40,973 psi | 64% | 2789 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 40,973 psi | 64% | 2789 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,511 psi | 68% | 2871 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,473 psi | 79% | 3002 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 40,582 psi | 64% | 2782 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,885 psi | 61% | 2779 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,648 psi | 51% | 2625 fps | 99% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,313 psi | 48% | 2572 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,694 psi | 56% | 2759 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 41,176 psi | 65% | 2831 fps | 95.8% |
| Bofors RP30 | <<locked>> | 94% | 41,495 psi | 65% | 2867 fps | 95.3% |
| Bofors RP5 | <<locked>> | 84% | 38,885 psi | 61% | 2779 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 48,298 psi | 76% | 2874 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 92% | 40,944 psi | 64% | 2818 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 47,152 psi | 74% | 2917 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 80% | 49,705 psi | 78% | 2933 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 88% | 47,616 psi | 75% | 2910 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 46,572 psi | 73% | 2890 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,205 psi | 65% | 2756 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 38,522 psi | 60% | 2854 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 46,789 psi | 73% | 2940 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 43% | 1726 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,671 psi | 68% | 2799 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,676 psi | 78% | 2900 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 43,424 psi | 68% | 2812 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 45,934 psi | 72% | 2844 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 90% | 45,643 psi | 72% | 2940 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 47,297 psi | 74% | 2848 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 45,455 psi | 71% | 2831 fps | 98.6% |
| Lovex S071 | <<locked>> | 82% | 31,241 psi | 49% | 2520 fps | 95% |
| Norma 204 | <<locked>> | 80% | 43,758 psi | 69% | 2835 fps | 96.5% |
| Norma 217 | <<locked>> | 98% | 36,680 psi | 57% | 2789 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 35,433 psi | 56% | 2720 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 44,614 psi | 70% | 2851 fps | 99.7% |
| Ramshot Grand | 82.4 gr | 88% | 42,482 psi | 67% | 2884 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 43,569 psi | 68% | 2848 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 38,058 psi | 60% | 2753 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,369 psi | 44% | 1768 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,650 psi | 84% | 3048 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,527 psi | 71% | 2887 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,787 psi | 69% | 2904 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 35,360 psi | 55% | 2759 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 52,475 psi | 82% | 2940 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 44,904 psi | 70% | 2831 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 82% | 39,958 psi | 63% | 2766 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,298 psi | 76% | 2874 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,297 psi | 74% | 2848 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 45,455 psi | 71% | 2831 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,940 psi | 85% | 2999 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,533 psi | 82% | 2818 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,224 psi | 72% | 2792 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 39,610 psi | 62% | 2762 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 52,417 psi | 82% | 2936 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,818 psi | 72% | 2818 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 41,597 psi | 65% | 2808 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,884 psi | 59% | 2687 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 80% | 50,024 psi | 78% | 2854 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,079 psi | 72% | 2848 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 37,594 psi | 59% | 2674 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 45,513 psi | 71% | 2851 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 36,564 psi | 57% | 2703 fps | 98.9% |
| Vihtavuori N560 | <<locked>> | 88% | 47,079 psi | 74% | 2976 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 92% | 44,121 psi | 69% | 2894 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,194 psi | 71% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,340 psi | 74% | 2920 fps | 98.8% |
| Winchester StaBALL HD | 74.8 gr | 80% | 28,993 psi | 45% | 2625 fps | 98.9% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,798 psi | 62% | 2733 fps | 95.4% |
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 76 powders for .300 Norma Mag. loaded with the .308 | 168gr | Frontier PH HPFB. Winchester StaBALL HD delivers the highest muzzle velocity at 3,215 fps; across all powders the maximum-charge window runs from 1,929 fps to 3,215 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 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 168.0 gr projectile in 0.308" calls for a 1:12.0 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, Ramshot Grand, Accurate MAGPRO rank at the top here: for .300 Norma Mag. with the .308 | 168gr | Frontier PH HPFB 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.