Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 168gr | Barnes TAC-TX BT 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, IMR 7828 SSC 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>> | 96% | 57,508 psi | 90% | 3054 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,824 psi | 86% | 3035 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 56,231 psi | 88% | 3150 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 56,246 psi | 88% | 3002 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,217 psi | 88% | 3097 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 57,711 psi | 90% | 3159 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,138 psi | 75% | 2976 fps | 97% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,786 psi | 67% | 2927 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,580 psi | 90% | 3025 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,202 psi | 88% | 3100 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 57,450 psi | 90% | 3117 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,550 psi | 87% | 3081 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 96% | 57,522 psi | 90% | 3153 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 54,969 psi | 86% | 3068 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,273 psi | 85% | 3123 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,274 psi | 87% | 3156 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 56,434 psi | 88% | 3130 fps | 99.1% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,140 psi | 79% | 3048 fps | 97.7% |
| Bofors RP5 | <<locked>> | 96% | 57,522 psi | 90% | 3153 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 57,551 psi | 90% | 3041 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,287 psi | 84% | 3077 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 86% | 56,942 psi | 89% | 3094 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 55,869 psi | 88% | 3051 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 94% | 57,595 psi | 90% | 3094 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,550 psi | 89% | 3077 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,304 psi | 88% | 3018 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,142 psi | 83% | 3189 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 84% | 53,476 psi | 84% | 3064 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,840 psi | 58% | 1932 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,651 psi | 87% | 3025 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,579 psi | 87% | 3012 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 55,317 psi | 87% | 3028 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,013 psi | 86% | 3022 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 96% | 55,347 psi | 87% | 3130 fps | 98.2% |
| Lovex S065 | <<locked>> | 86% | 55,970 psi | 88% | 3009 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,740 psi | 90% | 3058 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,549 psi | 85% | 3012 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 56,797 psi | 89% | 3081 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 38,174 psi | 60% | 2835 fps | 96.3% |
| Norma MRP | <<locked>> | 94% | 57,624 psi | 90% | 3176 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 57,232 psi | 90% | 3077 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,217 psi | 88% | 3156 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 56,217 psi | 88% | 3081 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,433 psi | 85% | 3084 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,623 psi | 59% | 1978 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 56,826 psi | 89% | 3097 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,129 psi | 86% | 3061 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 57,624 psi | 90% | 3153 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,867 psi | 84% | 3186 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 55,129 psi | 86% | 2986 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 57,276 psi | 90% | 3064 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 92% | 55,027 psi | 86% | 3071 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 57,551 psi | 90% | 3041 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,970 psi | 88% | 3009 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,740 psi | 90% | 3058 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,797 psi | 89% | 3048 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,158 psi | 86% | 2861 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,347 psi | 87% | 2959 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,592 psi | 86% | 3064 fps | 99% |
| Somchem S355 | <<locked>> | 82% | 54,897 psi | 86% | 2982 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,172 psi | 86% | 2992 fps | 97.5% |
| Somchem S365 | <<locked>> | 90% | 57,595 psi | 90% | 3077 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,405 psi | 87% | 3038 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 84% | 56,188 psi | 88% | 2956 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,332 psi | 87% | 3015 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,172 psi | 86% | 3022 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 86% | 54,491 psi | 85% | 3015 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 57,087 psi | 89% | 3094 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 57,421 psi | 90% | 3169 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 57,000 psi | 89% | 3143 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,027 psi | 86% | 2972 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,188 psi | 90% | 3097 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 56,594 psi | 89% | 3205 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,593 psi | 87% | 3038 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% | 32,880 psi | 52% | 2569 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 44,527 psi | 70% | 2854 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 90% | 48,805 psi | 76% | 3012 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 52,794 psi | 83% | 2946 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 39,929 psi | 63% | 2779 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 88% | 43,642 psi | 68% | 2890 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 98% | 44,976 psi | 70% | 2910 fps | 96% |
| ADI AR 2225 | <<locked>> | 94% | 35,012 psi | 55% | 2723 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,998 psi | 85% | 2972 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,946 psi | 67% | 2864 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,588 psi | 78% | 2992 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,885 psi | 63% | 2772 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 86% | 40,770 psi | 64% | 2828 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,705 psi | 50% | 2602 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 31,560 psi | 49% | 2618 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,606 psi | 54% | 2736 fps | 97.8% |
| Bofors RP15 | <<locked>> | 88% | 40,364 psi | 63% | 2818 fps | 95.6% |
| Bofors RP30 | <<locked>> | 96% | 43,642 psi | 68% | 2920 fps | 96% |
| Bofors RP5 | <<locked>> | 86% | 40,770 psi | 64% | 2828 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 47,471 psi | 74% | 2864 fps | 98.4% |
| Hodgdon H1000 | <<locked>> | 94% | 43,163 psi | 68% | 2874 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 80% | 46,470 psi | 73% | 2910 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 49,139 psi | 77% | 2930 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 46,905 psi | 74% | 2904 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 88% | 45,861 psi | 72% | 2881 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,350 psi | 63% | 2743 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 37,681 psi | 59% | 2838 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 46,050 psi | 72% | 2930 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,586 psi | 43% | 1729 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,062 psi | 67% | 2789 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,994 psi | 77% | 2894 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 42,453 psi | 67% | 2799 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 45,324 psi | 71% | 2838 fps | 95.3% |
| IMR 7828 SSC | 82.4 gr | 90% | 44,889 psi | 70% | 2930 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 46,383 psi | 73% | 2838 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 44,686 psi | 70% | 2825 fps | 98.5% |
| Lovex S071 | <<locked>> | 84% | 32,126 psi | 50% | 2549 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 42,917 psi | 67% | 2822 fps | 96.3% |
| Norma 217 | <<locked>> | 98% | 35,621 psi | 56% | 2769 fps | 95.2% |
| Norma MRP | 78 gr | 82% | 37,086 psi | 58% | 2769 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 43,888 psi | 69% | 2844 fps | 99.7% |
| Ramshot Grand | <<locked>> | 88% | 41,814 psi | 66% | 2874 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 42,685 psi | 67% | 2831 fps | 98.6% |
| Ramshot Magnum | <<locked>> | 88% | 37,101 psi | 58% | 2736 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,195 psi | 44% | 1772 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,794 psi | 83% | 3041 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,643 psi | 70% | 2874 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,888 psi | 67% | 2890 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 34,534 psi | 54% | 2740 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 51,619 psi | 81% | 2930 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 44,077 psi | 69% | 2818 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 39,059 psi | 61% | 2753 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 47,471 psi | 74% | 2864 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,383 psi | 73% | 2838 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 44,686 psi | 70% | 2825 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,084 psi | 83% | 2989 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,866 psi | 81% | 2815 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,324 psi | 71% | 2782 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 38,711 psi | 61% | 2746 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 51,488 psi | 81% | 2930 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,063 psi | 71% | 2808 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 40,785 psi | 64% | 2799 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,043 psi | 58% | 2674 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 49,313 psi | 77% | 2851 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,368 psi | 71% | 2841 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 36,680 psi | 57% | 2657 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 44,570 psi | 70% | 2838 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 35,476 psi | 56% | 2684 fps | 98.7% |
| Vihtavuori N560 | <<locked>> | 88% | 46,267 psi | 73% | 2963 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 94% | 46,238 psi | 72% | 2943 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,483 psi | 70% | 2802 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,470 psi | 73% | 2910 fps | 98.7% |
| Winchester StaBALL HD | 75.3 gr | 80% | 27,978 psi | 44% | 2595 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,030 psi | 61% | 2720 fps | 95.2% |
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 | 168gr | Barnes TAC-TX BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,205 fps; across all powders the maximum-charge window runs from 1,932 fps to 3,205 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 168.0 gr projectile in 0.308" calls for a 1:10.5 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, IMR 7828 SSC, Norma MRP rank at the top here: for .300 Norma Mag. with the .308 | 168gr | Barnes TAC-TX BT 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.