Load Specifications
Load data in caliber .300 Norma Mag. with .3085 | 168gr | Prvi Partizan HP BT bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand and Alliant Reloder-26.
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% | 56,869 psi | 89% | 3045 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,128 psi | 85% | 3022 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 55,390 psi | 87% | 3133 fps | 97.3% |
| ADI AR 2209 | <<locked>> | 90% | 55,027 psi | 86% | 3077 fps | 99% |
| ADI AR 2213 | <<locked>> | 94% | 56,521 psi | 89% | 3140 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,923 psi | 80% | 3031 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,498 psi | 71% | 2982 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 86% | 55,085 psi | 86% | 3081 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 56,159 psi | 88% | 3091 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 54,534 psi | 85% | 3061 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 94% | 56,637 psi | 89% | 3133 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 54,346 psi | 85% | 3054 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 57,508 psi | 90% | 3173 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 54,520 psi | 85% | 3136 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 55,811 psi | 87% | 3117 fps | 99.1% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,447 psi | 84% | 3107 fps | 98.5% |
| Bofors RP5 | <<locked>> | 94% | 56,637 psi | 89% | 3133 fps | 99.3% |
| Bofors RP7 | <<locked>> | 84% | 56,376 psi | 88% | 3025 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 56,173 psi | 88% | 3127 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 84% | 55,825 psi | 87% | 3077 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 82% | 54,737 psi | 86% | 3031 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 92% | 56,434 psi | 88% | 3074 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 55,230 psi | 87% | 3058 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,419 psi | 87% | 3002 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 56,333 psi | 88% | 3245 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 56,449 psi | 88% | 3114 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,144 psi | 58% | 1946 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 54,607 psi | 86% | 3005 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 82% | 54,201 psi | 85% | 2989 fps | 99.6% |
| IMR 4831 | <<locked>> | 86% | 54,607 psi | 86% | 3015 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 57,232 psi | 90% | 3058 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 94% | 54,563 psi | 86% | 3117 fps | 98.2% |
| Lovex S065 | <<locked>> | 84% | 54,984 psi | 86% | 2989 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 56,666 psi | 89% | 3041 fps | 99.9% |
| Lovex S071 | <<locked>> | 98% | 54,259 psi | 85% | 3005 fps | 100% |
| Norma 204 | <<locked>> | 86% | 55,463 psi | 87% | 3061 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 41,205 psi | 65% | 2904 fps | 97.5% |
| Norma MRP | <<locked>> | 92% | 56,565 psi | 89% | 3156 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 56,159 psi | 88% | 3058 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 55,158 psi | 86% | 3136 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 86% | 55,085 psi | 86% | 3064 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 53,592 psi | 84% | 3064 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,971 psi | 60% | 1988 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 54,259 psi | 85% | 3045 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 56,333 psi | 88% | 3130 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 57,435 psi | 90% | 3241 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 52,214 psi | 82% | 3114 fps | 96.9% |
| Rottweil R 904 | <<locked>> | 90% | 56,057 psi | 88% | 3045 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 92% | 57,711 psi | 90% | 3114 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 56,376 psi | 88% | 3025 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 54,984 psi | 86% | 2989 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 56,666 psi | 89% | 3041 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 57,334 psi | 90% | 2890 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,172 psi | 85% | 2940 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 57,261 psi | 90% | 3107 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 57,348 psi | 90% | 3018 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 54,012 psi | 85% | 2976 fps | 97.4% |
| Somchem S365 | <<locked>> | 88% | 56,797 psi | 89% | 3061 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 54,563 psi | 86% | 3025 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 82% | 54,955 psi | 86% | 2933 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 54,317 psi | 85% | 2995 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 54,273 psi | 85% | 3005 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 86% | 57,101 psi | 89% | 3054 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 56,434 psi | 88% | 3081 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 56,289 psi | 88% | 3150 fps | 98.1% |
| Vihtavuori N565 | <<locked>> | 98% | 56,405 psi | 88% | 3130 fps | 98.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,330 psi | 84% | 3123 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 57,609 psi | 90% | 3005 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 56,014 psi | 88% | 3077 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 56,275 psi | 88% | 3192 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,563 psi | 86% | 3022 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% | 35,375 psi | 55% | 2628 fps | 96.9% |
| Accurate 4350 | <<locked>> | 80% | 47,268 psi | 74% | 2904 fps | 100% |
| Accurate MAGPRO | 87.4 gr | 88% | 48,051 psi | 75% | 2995 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 39,320 psi | 62% | 2762 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 86% | 43,091 psi | 68% | 2874 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 96% | 44,469 psi | 70% | 2900 fps | 96% |
| ADI AR 2225 | <<locked>> | 92% | 34,998 psi | 55% | 2720 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,078 psi | 71% | 2904 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,243 psi | 82% | 3031 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,378 psi | 62% | 2756 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 84% | 40,451 psi | 63% | 2815 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,953 psi | 53% | 2657 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 82% | 31,459 psi | 49% | 2612 fps | 95.9% |
| Alliant Reloder-26 | 80.4 gr | 80% | 37,318 psi | 58% | 2799 fps | 98.7% |
| Bofors RP15 | <<locked>> | 86% | 40,074 psi | 63% | 2808 fps | 95.6% |
| Bofors RP30 | <<locked>> | 92% | 40,538 psi | 64% | 2844 fps | 95.1% |
| Bofors RP5 | <<locked>> | 84% | 40,451 psi | 63% | 2815 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 49,647 psi | 78% | 2904 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 90% | 39,769 psi | 62% | 2795 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 48,762 psi | 76% | 2949 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 51,271 psi | 80% | 2969 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 46,006 psi | 72% | 2884 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 45,179 psi | 71% | 2864 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,554 psi | 67% | 2785 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 37,550 psi | 59% | 2828 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 48,573 psi | 76% | 2976 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,818 psi | 44% | 1739 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,121 psi | 71% | 2831 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,010 psi | 80% | 2933 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 44,846 psi | 70% | 2841 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 44,527 psi | 70% | 2822 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 88% | 44,309 psi | 69% | 2913 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 48,646 psi | 76% | 2881 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 46,963 psi | 74% | 2867 fps | 99% |
| Lovex S071 | <<locked>> | 82% | 32,489 psi | 51% | 2552 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 45,179 psi | 71% | 2867 fps | 97% |
| Norma 217 | <<locked>> | 96% | 35,926 psi | 56% | 2772 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 36,840 psi | 58% | 2759 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 46,238 psi | 72% | 2887 fps | 99.9% |
| Ramshot Grand | 83.2 gr | 86% | 41,263 psi | 65% | 2858 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 45,049 psi | 71% | 2881 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 36,796 psi | 58% | 2723 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,471 psi | 45% | 1781 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,282 psi | 74% | 2923 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,440 psi | 71% | 2940 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 34,374 psi | 54% | 2733 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 48,370 psi | 76% | 3041 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 82% | 43,439 psi | 68% | 2805 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 38,653 psi | 61% | 2740 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 49,647 psi | 78% | 2904 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,646 psi | 76% | 2881 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 46,963 psi | 74% | 2867 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,867 psi | 84% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,500 psi | 74% | 2825 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,363 psi | 60% | 2736 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 53,925 psi | 85% | 2966 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 44,367 psi | 70% | 2795 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 43,366 psi | 68% | 2841 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,291 psi | 62% | 2723 fps | 96.5% |
| Vihtavuori N150 | <<locked>> | 80% | 51,648 psi | 81% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,659 psi | 75% | 2884 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 36,463 psi | 57% | 2651 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 47,007 psi | 74% | 2884 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 38,000 psi | 60% | 2736 fps | 99.3% |
| Vihtavuori N560 | <<locked>> | 86% | 45,759 psi | 72% | 2949 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 90% | 42,873 psi | 67% | 2871 fps | 95% |
| Vihtavuori N568 | <<locked>> | 98% | 49,530 psi | 78% | 3051 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,847 psi | 73% | 2841 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,936 psi | 77% | 2956 fps | 99.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 30,168 psi | 47% | 2664 fps | 99.4% |
| Winchester Supreme 780 | <<locked>> | 82% | 38,479 psi | 60% | 2703 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 77 powders for .300 Norma Mag. loaded with the .3085 | 168gr | Prvi Partizan HP BT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,245 fps; across all powders the maximum-charge window runs from 1,946 fps to 3,245 fps. ADI AR 2217 gives the best case fill at 100 %, and 77 of the 77 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 0.3085" calls for a 1:13.0 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. Accurate MAGPRO, Ramshot Grand, Alliant Reloder-26 rank at the top here: for .300 Norma Mag. with the .3085 | 168gr | Prvi Partizan HP BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.