Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 165gr | Federal Trophy Bonded bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and IMR 7828 SSC.
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>> | 96% | 57,290 psi | 90% | 3071 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,839 psi | 86% | 3054 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 55,970 psi | 88% | 3163 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 55,941 psi | 88% | 3015 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,767 psi | 87% | 3107 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 57,305 psi | 90% | 3169 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,008 psi | 75% | 2986 fps | 96.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,670 psi | 67% | 2936 fps | 98.2% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 55,883 psi | 88% | 3104 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,377 psi | 90% | 3041 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,579 psi | 87% | 3114 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,927 psi | 89% | 3127 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,187 psi | 86% | 3091 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 57,203 psi | 90% | 3163 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 54,389 psi | 85% | 3081 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,708 psi | 84% | 3136 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,781 psi | 86% | 3169 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 56,115 psi | 88% | 3143 fps | 98.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,777 psi | 78% | 3058 fps | 97.4% |
| Bofors RP5 | <<locked>> | 96% | 57,203 psi | 90% | 3163 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 57,435 psi | 90% | 3054 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,866 psi | 83% | 3084 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 86% | 56,594 psi | 89% | 3107 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 55,622 psi | 87% | 3061 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 57,217 psi | 90% | 3104 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,941 psi | 88% | 3084 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,115 psi | 88% | 3035 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,678 psi | 83% | 3196 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 86% | 57,246 psi | 90% | 3143 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,014 psi | 58% | 1946 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,448 psi | 87% | 3038 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,347 psi | 87% | 3022 fps | 99.6% |
| IMR 4831 | <<locked>> | 88% | 55,259 psi | 87% | 3045 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,723 psi | 86% | 3028 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 96% | 54,955 psi | 86% | 3140 fps | 97.9% |
| Lovex S065 | <<locked>> | 86% | 55,912 psi | 88% | 3022 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,696 psi | 90% | 3071 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,549 psi | 85% | 3028 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 56,420 psi | 88% | 3094 fps | 98.8% |
| Norma MRP | <<locked>> | 94% | 57,058 psi | 89% | 3186 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 57,058 psi | 89% | 3094 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,622 psi | 87% | 3163 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 88% | 55,854 psi | 88% | 3094 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 98% | 53,925 psi | 85% | 3091 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,826 psi | 59% | 1991 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 56,362 psi | 88% | 3117 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,868 psi | 86% | 3074 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 57,145 psi | 90% | 3166 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,534 psi | 84% | 3196 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 55,100 psi | 86% | 3005 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 57,087 psi | 89% | 3074 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 92% | 54,708 psi | 86% | 3081 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 57,435 psi | 90% | 3054 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,912 psi | 88% | 3022 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,696 psi | 90% | 3071 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,579 psi | 89% | 3061 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,085 psi | 86% | 2877 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,347 psi | 87% | 2972 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,273 psi | 85% | 3074 fps | 98.8% |
| Somchem S355 | <<locked>> | 82% | 54,810 psi | 86% | 2999 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,998 psi | 86% | 3005 fps | 97.2% |
| Somchem S365 | <<locked>> | 90% | 57,406 psi | 90% | 3097 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,230 psi | 87% | 3054 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 56,086 psi | 88% | 2969 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,158 psi | 86% | 3028 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,723 psi | 86% | 3031 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 86% | 54,418 psi | 85% | 3031 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,898 psi | 89% | 3110 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 56,840 psi | 89% | 3176 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 56,695 psi | 89% | 3153 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,694 psi | 86% | 2986 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,797 psi | 89% | 3110 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 55,854 psi | 88% | 3219 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,317 psi | 87% | 3048 fps | 98.8% |
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% | 33,272 psi | 52% | 2592 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 44,657 psi | 70% | 2874 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 90% | 48,443 psi | 76% | 3022 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 52,707 psi | 83% | 2963 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 39,871 psi | 62% | 2789 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 46,644 psi | 73% | 2969 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 98% | 44,860 psi | 70% | 2920 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 94% | 35,128 psi | 55% | 2736 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 40,248 psi | 63% | 2792 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,824 psi | 84% | 2989 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,714 psi | 67% | 2877 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,356 psi | 77% | 3009 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,856 psi | 62% | 2785 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 40,785 psi | 64% | 2844 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,836 psi | 50% | 2621 fps | 98.6% |
| Alliant Reloder-25 | <<locked>> | 84% | 31,749 psi | 50% | 2638 fps | 95.6% |
| Alliant Reloder-26 | 77.5 gr | 80% | 34,751 psi | 54% | 2756 fps | 97.7% |
| Bofors RP15 | <<locked>> | 88% | 40,408 psi | 63% | 2835 fps | 95.3% |
| Bofors RP30 | <<locked>> | 96% | 43,381 psi | 68% | 2930 fps | 95.7% |
| Bofors RP5 | <<locked>> | 86% | 40,785 psi | 64% | 2844 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 47,572 psi | 75% | 2881 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 43,062 psi | 67% | 2884 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 46,369 psi | 73% | 2920 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 48,950 psi | 77% | 2943 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 46,644 psi | 73% | 2913 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 90% | 48,965 psi | 77% | 2956 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,422 psi | 63% | 2762 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 40,393 psi | 63% | 2920 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 45,745 psi | 72% | 2940 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,673 psi | 43% | 1739 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,989 psi | 67% | 2802 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,805 psi | 76% | 2907 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 42,482 psi | 67% | 2815 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 86% | 45,252 psi | 71% | 2851 fps | 95% |
| IMR 7828 SSC | 81.5 gr | 90% | 44,846 psi | 70% | 2943 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 46,398 psi | 73% | 2854 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 44,744 psi | 70% | 2838 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 32,634 psi | 51% | 2575 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 43,018 psi | 67% | 2838 fps | 96% |
| Norma MRP | <<locked>> | 82% | 37,159 psi | 58% | 2789 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 43,845 psi | 69% | 2858 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 44,672 psi | 70% | 2953 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 42,815 psi | 67% | 2851 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 88% | 37,159 psi | 58% | 2753 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,311 psi | 44% | 1781 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,417 psi | 82% | 3054 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,686 psi | 70% | 2894 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,815 psi | 67% | 2904 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 37,188 psi | 58% | 2828 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 51,590 psi | 81% | 2949 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 43,990 psi | 69% | 2831 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 82% | 39,059 psi | 61% | 2769 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 47,572 psi | 75% | 2881 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,398 psi | 73% | 2854 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 44,744 psi | 70% | 2838 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,084 psi | 83% | 3009 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,793 psi | 81% | 2828 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,542 psi | 71% | 2799 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 41,466 psi | 65% | 2825 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 51,416 psi | 81% | 2943 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 48,196 psi | 76% | 2884 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 40,756 psi | 64% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,217 psi | 58% | 2694 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 49,255 psi | 77% | 2864 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,295 psi | 71% | 2858 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 39,305 psi | 62% | 2736 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 44,773 psi | 70% | 2858 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 35,795 psi | 56% | 2707 fps | 98.6% |
| Vihtavuori N560 | <<locked>> | 88% | 46,209 psi | 72% | 2976 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 94% | 46,050 psi | 72% | 2956 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,411 psi | 70% | 2818 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,543 psi | 73% | 2927 fps | 98.5% |
| Winchester StaBALL HD | 74.5 gr | 80% | 28,384 psi | 44% | 2618 fps | 98.4% |
| Winchester Supreme 780 | <<locked>> | 86% | 41,829 psi | 66% | 2799 fps | 95.9% |
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 74 powders for .300 Norma Mag. loaded with the .308 | 165gr | Federal Trophy Bonded. Winchester StaBALL HD delivers the highest muzzle velocity at 3,219 fps; across all powders the maximum-charge window runs from 1,946 fps to 3,219 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 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 165.0 gr projectile in 0.308" calls for a 1:10.0 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. Alliant Reloder-26, Winchester StaBALL HD, IMR 7828 SSC rank at the top here: for .300 Norma Mag. with the .308 | 165gr | Federal Trophy Bonded 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.