Load Specifications
Load data in caliber .300 Norma Mag. with .308 | 150gr | Nosler Solid Base bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, ADI AR 2213 and Vihtavuori N560.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 56,304 psi | 88% | 3117 fps | 98.7% |
| Accurate 3100 | <<locked>> | 98% | 55,912 psi | 88% | 3169 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 55,941 psi | 88% | 3104 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 57,377 psi | 90% | 3222 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 57,217 psi | 90% | 3320 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 84% | 55,637 psi | 87% | 3136 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,505 psi | 85% | 3205 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 98% | 56,028 psi | 88% | 3261 fps | 97% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,824 psi | 86% | 3202 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,782 psi | 89% | 3163 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,782 psi | 89% | 3186 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,273 psi | 85% | 3222 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,651 psi | 87% | 3245 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,114 psi | 85% | 3192 fps | 97.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,506 psi | 87% | 3258 fps | 98.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,260 psi | 88% | 3241 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,805 psi | 76% | 3166 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,000 psi | 89% | 3333 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,447 psi | 85% | 3235 fps | 97.9% |
| Bofors RP3 | <<locked>> | 82% | 54,128 psi | 85% | 3123 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 55,506 psi | 87% | 3258 fps | 98.2% |
| Bofors RP7 | <<locked>> | 88% | 56,884 psi | 89% | 3166 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 82% | 54,331 psi | 85% | 3140 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 55,666 psi | 87% | 3215 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 86% | 54,998 psi | 86% | 3169 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 96% | 56,202 psi | 88% | 3202 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,940 psi | 86% | 3179 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,708 psi | 86% | 3143 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,659 psi | 75% | 3202 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 88% | 56,260 psi | 88% | 3255 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,608 psi | 57% | 2021 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,071 psi | 86% | 3120 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 57,377 psi | 90% | 3153 fps | 99.3% |
| IMR 4350 | <<locked>> | 90% | 54,650 psi | 86% | 3143 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,027 psi | 86% | 3136 fps | 99% |
| IMR 4831 | <<locked>> | 90% | 54,099 psi | 85% | 3153 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,392 psi | 90% | 3186 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,334 psi | 90% | 3297 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 55,332 psi | 87% | 3110 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,419 psi | 87% | 3136 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 56,884 psi | 89% | 3179 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,559 psi | 78% | 3061 fps | 99% |
| Norma 203B | <<locked>> | 82% | 56,115 psi | 88% | 3169 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,695 psi | 87% | 3199 fps | 97.9% |
| Norma MRP | <<locked>> | 96% | 55,288 psi | 87% | 3284 fps | 99.2% |
| Norma URP | <<locked>> | 90% | 55,927 psi | 88% | 3205 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 57,217 psi | 90% | 3199 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,099 psi | 85% | 3248 fps | 97% |
| Ramshot Hunter | <<locked>> | 90% | 54,897 psi | 86% | 3202 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,373 psi | 82% | 3179 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,362 psi | 59% | 2070 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,230 psi | 85% | 3120 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,172 psi | 86% | 3238 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,537 psi | 90% | 3245 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,883 psi | 88% | 3274 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,066 psi | 75% | 3199 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 57,232 psi | 90% | 3127 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 54,375 psi | 85% | 3123 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,072 psi | 88% | 3176 fps | 97% |
| Rottweil R 905 | <<locked>> | 96% | 57,058 psi | 89% | 3241 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 56,884 psi | 89% | 3166 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,419 psi | 87% | 3136 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 55,332 psi | 87% | 3110 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,884 psi | 89% | 3179 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,767 psi | 87% | 3179 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,737 psi | 86% | 2999 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,752 psi | 86% | 3081 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,579 psi | 89% | 3235 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 57,638 psi | 90% | 3173 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,389 psi | 85% | 3104 fps | 95.9% |
| Somchem S365 | <<locked>> | 92% | 55,782 psi | 87% | 3209 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,070 psi | 85% | 3153 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 82% | 57,638 psi | 90% | 3081 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 55,361 psi | 87% | 3087 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,317 psi | 85% | 3140 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,101 psi | 89% | 3186 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 56,130 psi | 88% | 3087 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,130 psi | 90% | 3202 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,013 psi | 86% | 3212 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,317 psi | 87% | 3271 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 57,711 psi | 90% | 3153 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,869 psi | 88% | 3219 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,605 psi | 82% | 3314 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,041 psi | 85% | 3143 fps | 97.7% |
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 2700 | <<locked>> | 80% | 52,620 psi | 82% | 3054 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 36,999 psi | 58% | 2795 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 52,562 psi | 82% | 3051 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,596 psi | 64% | 2907 fps | 98.5% |
| Accurate High Country | <<locked>> | 92% | 49,676 psi | 78% | 3179 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 49,037 psi | 77% | 3022 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 44,657 psi | 70% | 3009 fps | 95.4% |
| ADI AR 2213 | 84.6 gr | 94% | 48,892 psi | 77% | 3123 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 45,034 psi | 71% | 3009 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,009 psi | 78% | 3051 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,214 psi | 83% | 3127 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,218 psi | 61% | 2917 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,860 psi | 70% | 3051 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 44,527 psi | 70% | 3002 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 45,252 psi | 71% | 3061 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,964 psi | 45% | 2638 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 35,114 psi | 55% | 2838 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 82% | 33,576 psi | 53% | 2831 fps | 95.9% |
| Bofors RP15 | <<locked>> | 94% | 44,628 psi | 70% | 3041 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 50,575 psi | 79% | 3064 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 45,252 psi | 71% | 3061 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 44,121 psi | 69% | 2923 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 50,836 psi | 80% | 3077 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 42,496 psi | 67% | 2956 fps | 96.6% |
| Hodgdon H4350 | <<locked>> | 80% | 45,237 psi | 71% | 2979 fps | 96% |
| Hodgdon H4831 | <<locked>> | 94% | 52,475 psi | 82% | 3136 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,329 psi | 80% | 3114 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,782 psi | 58% | 2795 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 96% | 41,669 psi | 65% | 3054 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 41,655 psi | 65% | 2966 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,369 psi | 43% | 1811 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,576 psi | 81% | 3061 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,838 psi | 84% | 3094 fps | 98.9% |
| IMR 4350 | <<locked>> | 80% | 39,697 psi | 62% | 2838 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,585 psi | 71% | 2956 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 38,943 psi | 61% | 2854 fps | 98.2% |
| IMR 4955 Enduron | <<locked>> | 92% | 50,662 psi | 79% | 3064 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 96% | 50,111 psi | 79% | 3163 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 52,054 psi | 82% | 3058 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,105 psi | 68% | 2900 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 41,423 psi | 65% | 2877 fps | 96.5% |
| Lovex S071 | <<locked>> | 90% | 35,839 psi | 56% | 2766 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 52,591 psi | 82% | 3110 fps | 100% |
| Norma 204 | <<locked>> | 84% | 45,179 psi | 71% | 2995 fps | 95.4% |
| Norma MRP | 79.9 gr | 86% | 38,682 psi | 61% | 2936 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 40,234 psi | 63% | 2900 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 80% | 53,447 psi | 84% | 3136 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 46,760 psi | 73% | 3100 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 39,146 psi | 61% | 2884 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 94% | 41,727 psi | 65% | 2963 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,949 psi | 44% | 1857 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,691 psi | 79% | 3058 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,616 psi | 75% | 3114 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,451 psi | 63% | 2923 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,073 psi | 61% | 2930 fps | 97.6% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 38,769 psi | 61% | 2966 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 53,853 psi | 84% | 3074 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,718 psi | 75% | 3005 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 49,313 psi | 77% | 3051 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 88% | 43,729 psi | 69% | 2986 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 44,121 psi | 69% | 2923 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,105 psi | 68% | 2900 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 52,054 psi | 82% | 3058 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,423 psi | 65% | 2877 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,979 psi | 77% | 3061 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,457 psi | 76% | 2900 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,221 psi | 66% | 2838 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 43,337 psi | 68% | 2979 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 47,747 psi | 75% | 3002 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 50,821 psi | 80% | 3041 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 36,724 psi | 58% | 2848 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 41,466 psi | 65% | 2900 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 54,346 psi | 85% | 3031 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 45,701 psi | 72% | 2927 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,524 psi | 65% | 2897 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 90% | 40,901 psi | 64% | 2877 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 52,721 psi | 83% | 3035 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,118 psi | 64% | 2897 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 32,169 psi | 50% | 2723 fps | 96.4% |
| Vihtavuori N560 | 87.3 gr | 94% | 51,503 psi | 81% | 3202 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,799 psi | 64% | 2864 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 42,670 psi | 67% | 2959 fps | 96.6% |
| Winchester StaBALL HD | <<locked>> | 82% | 27,456 psi | 43% | 2674 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 90% | 43,859 psi | 69% | 2949 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 84 powders for .300 Norma Mag. loaded with the .308 | 150gr | Nosler Solid Base. Alliant Reloder-26 delivers the highest muzzle velocity at 3,333 fps; across all powders the maximum-charge window runs from 2,021 fps to 3,333 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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. Norma MRP, ADI AR 2213, Vihtavuori N560 rank at the top here: for .300 Norma Mag. with the .308 | 150gr | Nosler Solid Base 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.