Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 168gr | Nosler Expansion Tip bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Accurate MAGPRO 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% | 55,811 psi | 87% | 3028 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,348 psi | 90% | 3071 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 57,479 psi | 90% | 3182 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 94% | 54,621 psi | 86% | 3120 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 82% | 55,158 psi | 86% | 2982 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 54,694 psi | 86% | 3068 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 56,086 psi | 88% | 3127 fps | 98.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,818 psi | 73% | 2946 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,423 psi | 65% | 2890 fps | 98% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 54,810 psi | 86% | 3061 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,217 psi | 88% | 3002 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 54,607 psi | 86% | 3074 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,883 psi | 88% | 3091 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,085 psi | 85% | 3054 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,825 psi | 87% | 3120 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,971 psi | 89% | 3097 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,634 psi | 82% | 3094 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 57,682 psi | 90% | 3192 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 54,766 psi | 86% | 3100 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 57,203 psi | 90% | 3018 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,341 psi | 76% | 3015 fps | 97.2% |
| Bofors RP5 | <<locked>> | 96% | 55,825 psi | 87% | 3120 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 56,391 psi | 88% | 3018 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,677 psi | 81% | 3041 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 82% | 57,377 psi | 90% | 3041 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,521 psi | 87% | 3068 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 54,665 psi | 86% | 3025 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 56,217 psi | 88% | 3068 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,940 psi | 86% | 3045 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,795 psi | 86% | 2995 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,430 psi | 81% | 3153 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 86% | 56,072 psi | 88% | 3104 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,796 psi | 58% | 1923 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,360 psi | 85% | 2999 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,418 psi | 85% | 2986 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 57,624 psi | 90% | 3061 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,087 psi | 89% | 3048 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 98% | 57,580 psi | 90% | 3166 fps | 98.5% |
| Lovex S065 | <<locked>> | 86% | 54,766 psi | 86% | 2986 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,376 psi | 88% | 3031 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,026 psi | 83% | 2986 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 55,317 psi | 87% | 3051 fps | 98.7% |
| Norma MRP | <<locked>> | 94% | 55,608 psi | 87% | 3143 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 55,767 psi | 87% | 3054 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,520 psi | 85% | 3120 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 88% | 54,694 psi | 86% | 3054 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,927 psi | 89% | 3120 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,579 psi | 59% | 1969 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,261 psi | 90% | 3028 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,274 psi | 87% | 3077 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,435 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,999 psi | 88% | 3127 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,069 psi | 82% | 3150 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 84% | 57,479 psi | 90% | 3018 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,014 psi | 88% | 3038 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 57,305 psi | 90% | 3104 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 56,391 psi | 88% | 3018 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,766 psi | 86% | 2986 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,376 psi | 88% | 3031 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,535 psi | 87% | 3025 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,522 psi | 90% | 2890 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,740 psi | 90% | 2992 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,840 psi | 89% | 3097 fps | 99.2% |
| Somchem S355 | <<locked>> | 84% | 57,188 psi | 90% | 3012 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 53,983 psi | 85% | 2969 fps | 97.1% |
| Somchem S365 | <<locked>> | 90% | 56,043 psi | 88% | 3054 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,653 psi | 90% | 3071 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 54,940 psi | 86% | 2933 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,114 psi | 85% | 2992 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,406 psi | 90% | 3051 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 56,927 psi | 89% | 3051 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,405 psi | 87% | 3068 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,550 psi | 87% | 3136 fps | 97.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,230 psi | 87% | 3107 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,508 psi | 90% | 3005 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,724 psi | 87% | 3074 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,244 psi | 85% | 3176 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,998 psi | 85% | 3005 fps | 98.7% |
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% | 31,792 psi | 50% | 2539 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 43,178 psi | 68% | 2825 fps | 99.6% |
| Accurate High Country | <<locked>> | 86% | 43,221 psi | 68% | 2910 fps | 95.2% |
| Accurate MAGPRO | 85.2 gr | 90% | 47,195 psi | 74% | 2979 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 51,663 psi | 81% | 2927 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 41,626 psi | 65% | 2815 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 90% | 45,556 psi | 71% | 2927 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 98% | 43,671 psi | 68% | 2877 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 96% | 36,230 psi | 57% | 2756 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 39,175 psi | 61% | 2749 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,823 psi | 83% | 2949 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,785 psi | 65% | 2841 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,225 psi | 76% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 41,539 psi | 65% | 2805 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 39,508 psi | 62% | 2799 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,748 psi | 48% | 2575 fps | 98.4% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,661 psi | 48% | 2592 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,504 psi | 53% | 2707 fps | 97.3% |
| Bofors RP15 | <<locked>> | 88% | 39,146 psi | 61% | 2785 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 53,476 psi | 84% | 2963 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 42,076 psi | 66% | 2884 fps | 95.4% |
| Bofors RP5 | <<locked>> | 86% | 39,508 psi | 62% | 2799 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 46,441 psi | 73% | 2838 fps | 98.2% |
| Hodgdon H1000 | <<locked>> | 94% | 41,843 psi | 66% | 2838 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 53,693 psi | 84% | 2982 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,237 psi | 71% | 2881 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 80% | 47,935 psi | 75% | 2900 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 88% | 45,513 psi | 71% | 2871 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 90% | 47,848 psi | 75% | 2920 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,233 psi | 61% | 2720 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 39,247 psi | 62% | 2874 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 44,715 psi | 70% | 2900 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,485 psi | 43% | 1719 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,959 psi | 66% | 2762 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,993 psi | 75% | 2871 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 41,379 psi | 65% | 2772 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 47,137 psi | 74% | 2867 fps | 95.7% |
| IMR 7828 SSC | 80.5 gr | 90% | 43,714 psi | 69% | 2900 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 45,382 psi | 71% | 2815 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 43,671 psi | 68% | 2799 fps | 98.2% |
| Lovex S071 | <<locked>> | 86% | 33,359 psi | 52% | 2582 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 41,974 psi | 66% | 2799 fps | 95.8% |
| Norma MRP | <<locked>> | 82% | 35,998 psi | 56% | 2740 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 42,786 psi | 67% | 2818 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 43,497 psi | 68% | 2907 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 41,698 psi | 65% | 2812 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 90% | 38,798 psi | 61% | 2772 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 44% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,476 psi | 84% | 2969 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,285 psi | 80% | 3018 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,250 psi | 68% | 2844 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,785 psi | 65% | 2864 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,897 psi | 56% | 2779 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 50,386 psi | 79% | 2910 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,989 psi | 67% | 2792 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 84% | 40,683 psi | 64% | 2789 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 46,441 psi | 73% | 2838 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,382 psi | 71% | 2815 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 43,671 psi | 68% | 2799 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,982 psi | 81% | 2969 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,894 psi | 80% | 2795 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,411 psi | 70% | 2759 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 40,335 psi | 63% | 2782 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 50,328 psi | 79% | 2904 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 47,108 psi | 74% | 2844 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 39,450 psi | 62% | 2769 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,984 psi | 56% | 2648 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 48,240 psi | 76% | 2828 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,135 psi | 69% | 2818 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 38,218 psi | 60% | 2694 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 43,555 psi | 68% | 2818 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 34,389 psi | 54% | 2654 fps | 98.3% |
| Vihtavuori N560 | <<locked>> | 88% | 45,005 psi | 71% | 2933 fps | 95% |
| Vihtavuori N565 | <<locked>> | 94% | 44,715 psi | 70% | 2910 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,439 psi | 68% | 2779 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,411 psi | 71% | 2884 fps | 98.4% |
| Winchester StaBALL HD | 73.6 gr | 80% | 27,195 psi | 43% | 2562 fps | 98% |
| Winchester Supreme 780 | <<locked>> | 86% | 40,625 psi | 64% | 2753 fps | 95.6% |
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 78 powders for .300 Norma Mag. loaded with the .308 | 168gr | Nosler Expansion Tip. Alliant Reloder-26 delivers the highest muzzle velocity at 3,192 fps; across all powders the maximum-charge window runs from 1,923 fps to 3,192 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 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 1:11.0 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, Accurate MAGPRO, IMR 7828 SSC rank at the top here: for .300 Norma Mag. with the .308 | 168gr | Nosler Expansion Tip 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.